Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

International Journal of Modern Physics B

Conservative quantum phase-field duality for elastic coherence in mesoscopic systems

R. Horchani, Mohammed Al Rashdi

Published Jul 24, 2026• 0 citations
Publisher

Abstract

We formulate a conservative, [Formula: see text]-invariant, Hamiltonian extension of Schrödinger/Gross–Pitaevskii hydrodynamics in the rest frame of an effective coherent medium in which the complex matter field [Formula: see text] couples to a real, dimensionless phase-stiffness field [Formula: see text]. The auxiliary field dynamically modulates the Bohm quantum potential through a coupling proportional to the local Fisher-information density, while itself evolving through an inertial equation driven by amplitude gradients. The variationally consistent amplitude-gradient coefficient is [Formula: see text], so positive excursions of [Formula: see text] produce an adaptive softening of quantum pressure. From a single variational principle we obtain coupled evolution equations and a norm-conserving energy functional that is lower bounded in the positive-stiffness sector. Standard Schrödinger/Gross–Pitaevskii dynamics is recovered when [Formula: see text], whereas the classical Hamilton–Jacobi limit requires both [Formula: see text] and the disappearance of the auxiliary excitation. Linear analysis reveals an independent gapped stiffness mode in addition to the Bogoliubov branch, whose zero-momentum gap and quadratic dispersion coefficient determine the parameter ratios [Formula: see text] and [Formula: see text] governing restoration, smoothing and inertia. In the nonlinear regime the same feedback produces an oscillatory auxiliary-field response and a numerically converged, parameter-dependent reduction of wave-packet spreading. The packet remains dispersive rather than forming an interaction-free self-bound state. The framework further predicts a conditional logarithmic visibility relation under a calibrated interferometric readout and reversible finite-rate response loops under cyclic driving. These loops quantify conservative inertial lag rather than dissipated energy or intrinsic hysteretic memory. These results establish the phase-field duality as a minimal and falsifiable Hamiltonian extension in which coherence behaves as an elastic medium.

DOI
10.1142/s0217979226400266

Related papers

Emergence of Classical Transport Dynamics from Variational Dissipative Conservative Evolution

Kevin ELLIS ANDERSON

This deposit contains the paper “Emergence of a Quantum-Analogue Regime from Variational Dissipative–Conservative Dynamics” by Kevin Ellis Anderson. The paper analyses a regime of a previously introduced variational dissipative–conservative partial differential equation framework in which the conservative oscillatory sector admits an effective quantum-like description. Starting from deterministic Hamiltonian evolution coupled to auxiliary dissipative degrees of freedom, the work shows that an amplitude–phase decomposition of the oscillatory field yields a Schrödinger-type equation with an emergent effective Planck constant. The resulting dynamics are formally equivalent to quantum mechanics within a specific regime of validity, while remaining embedded in a broader variational system that also supports decoherent and classical limits. No modification of unitary evolution is introduced, and no stochastic elements, collapse postulates, or hidden variables are assumed. The paper does not propose a revision of quantum theory. Rather, it situates quantum behaviour as a regime arising from deterministic variational dynamics, with effective parameters determined by the underlying free-energy functional and coupling structure.

•Jan 2, 2026•0 citations

A Coherence Connection on Fisher–Rao Probability Geometry

Barker Christian

A mathematically explicit extension of quantum hydrodynamics is developed in which a scalar coherence field ΦG modifies phase transport and is driven by the information-geometric structure of the probability density together with probability transport itself. The construction starts from the Madelung representation Ψ = √ρ eiS/ℏ, augments the phase gradient by the covariant shift ∇S ↦ ∇S − αℏ∇ΦG, and defines the dynamics through a variational (ρ, S) sector together with a dissipative Onsager-type relaxation law for ΦG. This yields a closed PDE system consisting of a continuity equation, a modified Hamilton–Jacobi equation, and a coherence-field equation that reduces in the overdamped limit to an elliptic closure. The source of ΦG is neither bare mass density nor bare probability density: it is a local Fisher-information density together with probability transport, so that ΦG measures coherence demand. The field equations are written explicitly; the coupling sign is fixed by an energy-stability argument, the transport-forcing sign by a dissipation argument, and the induced coherence-pressure term is computed exactly. A structural no-signalling condition is obtained by restricting the nonlinearity to Fisher-marginal source functionals that are blind to the entanglement Fisher excess under marginalisation. A coarse-grained Yukawa sector is shown to admit a conditional Newtonian limit under explicitly stated screening and additivity assumptions; this remains a conjectural macroscopic regime rather than a completed derivation of gravity. The paper closes with a falsifiable numerical programme—ablation studies, dispersion diagnostics, Fisher-information monitoring, and an explicit pilot solver scaffold—together with a claim-status ledger, a testability map, and a development roadmap that separate what is defined, what is derived, what is heuristic, and what remains unproven. Keywords: quantum hydrodynamics; Fisher–Rao geometry; Madelung dynamics; coherence field; no-signalling; information geometry.

•Jun 6, 2026•0 citations

Dissipative Hamilton Jacobi Dynamics and the Emergence of Quantum Wave Mechanics

Naleli Jubert Matjelo

We develop a dissipative extension of classical mechanics based on a complex, and more generally quaternionic, action principle that endows every classical system with an intrinsic environment. Decomposing the action into conservative and divergence-induced components yields two coupled Hamilton Jacobi equations describing a dynamically intertwined system environment pair. This motivates a Dual Sector or Dual Environmental Interpretation (DSI/DEI), in which the additional degrees of freedom behave as an image sector exchanging energy, information, and phase with the system. Applying a generalized Madelung transform produces a nonlinear dissipative wave equation whose symmetric equilibrium limit reduces to the Schroedinger equation, with the quantum potential and linearity emerging from balanced intersector coupling. In this framework, the wavefunction is not fundamental but encodes the interaction geometry between system and environment, providing a classical origin for interference, amplitude phase coupling, and probabilistic structure. Extending the imaginary structure to multiple independent directions yields a multienvironment generalization capable of representing measurement-like processes, nonMarkovian memory, and entanglement type correlations. The formulation unifies aspects of dual-system models, hydrodynamic approaches, and non-Hermitian dynamics within a single action-based framework, and suggests that quantum mechanics corresponds to a stable symmetric phase of a broader dissipative classical theory.

quant-pharXiv:2604.06455•Apr 9, 2026•0 citations

Emergence of a Quantum Analogue Regime from Variational Dissipative Conservative Dynamics

Kevin ELLIS ANDERSON

This deposit contains the paper “Emergence of a Quantum-Analogue Regime from Variational Dissipative–Conservative Dynamics” by Kevin Ellis Anderson. The paper analyses a regime of a previously introduced variational dissipative–conservative partial differential equation framework in which the conservative oscillatory sector admits an effective quantum-like description. Starting from deterministic Hamiltonian evolution coupled to auxiliary dissipative degrees of freedom, the work shows that an amplitude–phase decomposition of the oscillatory field yields a Schrödinger-type equation with an emergent effective Planck constant. The resulting dynamics are formally equivalent to quantum mechanics within a specific regime of validity, while remaining embedded in a broader variational system that also supports decoherent and classical limits. No modification of unitary evolution is introduced, and no stochastic elements, collapse postulates, or hidden variables are assumed. The paper does not propose a revision of quantum theory. Rather, it situates quantum behaviour as a regime arising from deterministic variational dynamics, with effective parameters determined by the underlying free-energy functional and coupling structure.

•Jan 2, 2026•0 citations

Coherence, Circulation and the Quantum Regime

Roy Herbert

The completed Chronoflux Atlas recovers the quantum regime as the coherent phase branch of conserved temporal transport. Continuity supplies the current, temporal order and positive kinetic response recovered in DPL-00 through DPL-04. Coherence adds a non-vanishing complex state with a physical phase and action scale. Once that descendant is admitted, variation returnsphase transport, topology quantises circulation, the Fisher-gradient term returns the Bohm quantum potential, and the density-phase equations recombine exactly into the Schrödinger equation. Quantum behaviour is therefore not attached to continuity by analogy. It is recovered as the lawful dynamics of a coherent continuity branch. The coherent action gives a conserved density current and a quantum Hamilton-Jacobi equation. On the domain where the amplitude does not vanish, the phase one-form is locally exact. Its global periods are integer winding numbers, giving circulation in units of ℎ/𝑚. Those integers persist under every continuous admissible evolution and can change only when a defect crosses the return path or the coherent amplitude vanishes. The apparent discontinuity of a quantum phase slip is thus the topological consequence of continuous evolution through a configuration where the phase ceases to be defined. The same structure returns the exact Madelung representation of a selected Schrödinger branch. On configuration space it yields the Born current, current velocity and quantum potential. Adding an actual configuration following that velocity is the Bohmian ontological completion, not an unstated consequence of continuity. Equivariance then proves persistence of quantum equilibrium. At field level, a shift-symmetric action closes a classical current, its quadratic perturbations recover a characteristic metric, and stationary canonical data produce a recoverable bosonic quantum state. Gauge selection, spin, fermionic statistics, outcome selection and Standard Model promotion remain separately indexed descendants. The paper also closes the non-ideal boundary. Multiplying a density by an arbitrary positive weight generates an exact continuity source and an exact transformed quantum potential; it cannot be presented as a free admissibility correction. Any departure from the closed branch requires a declared self-adjoint operator or trace-preserving open-system law. Admissibility, Recoverability and Persistence then distinguish a genuine quantum branch from incomplete phase data, singular nodal flow or an unreturned measurement model. The result closes coherence, quantised circulation and quantum response within the recovered tree of nature as such. Keywords: coherence; phase; circulation; quantum potential; Madelung transform; Schrödinger equation; Bohmian guidance; equivariance; quantum field reconstruction; Chronoflux Atlas

•Jul 24, 2026•0 citations

Emergent Dissipation from Multi-Branch Mode Coupling in Coherent Media

Brian Doyle Lampton

This work identifies a minimal, generic mechanism by which effective dissipation and viscosity emerge from fundamentally conservative dynamics in coherent systems. The analysis focuses on fields that admit an amplitude–phase decomposition and therefore support multiple excitation branches, specifically a gapped amplitude mode and gapless phase (Goldstone) modes. It is shown that mixed amplitude–phase coupling opens resonant decay channels in which energy stored in coherent amplitude excitations is transferred into pairs of phase modes. While the underlying equations of motion remain Hamiltonian and time-reversal invariant, coarse-graining over microscopic phase information converts this reversible energy exchange into effectively irreversible relaxation. The mechanism is developed analytically using a generic field-theoretic framework, supported numerically through structure-preserving simulations of a minimal two-field model, and interpreted as an emergent bulk-viscosity-like response. No explicit dissipative terms or external baths are introduced. A direct experimental realization is identified in trapped Bose–Einstein condensates, where well-established Beliaev-type mode coupling provides a laboratory analogue of the multi-branch interaction channel analyzed in this work. The results provide a unified and experimentally anchored framework for understanding how dissipation, viscosity, and relaxation can arise internally from conservative dynamics in coherent media, with relevance across condensed matter physics, field theory, and related contexts.

•Jan 18, 2026•0 citations
We formulate a conservative, [Formula: see text]-invariant, Hamiltonian extension of Schrödinger/Gross–Pitaevskii hydrodynamics in the rest frame of an effective coherent medium in which the complex matter field [Formula: see text] couples to a real, dimensionless phase-stiffness field [Formula: see text]. The auxiliary field dynamically modulates the Bohm quantum potential through a coupling proportional to the local Fisher-information density, while itself evolving through an inertial equation driven by amplitude gradients. The variationally consistent amplitude-gradient coefficient is [Formula: see text], so positive excursions of [Formula: see text] produce an adaptive softening of quantum pressure. From a single variational principle we obtain coupled evolution equations and a norm-conserving energy functional that is lower bounded in the positive-stiffness sector. Standard Schrödinger/Gross–Pitaevskii dynamics is recovered when [Formula: see text], whereas the classical Hamilton–Jacobi limit requires both [Formula: see text] and the disappearance of the auxiliary excitation. Linear analysis reveals an independent gapped stiffness mode in addition to the Bogoliubov branch, whose zero-momentum gap and quadratic dispersion coefficient determine the parameter ratios [Formula: see text] and [Formula: see text] governing restoration, smoothing and inertia. In the nonlinear regime the same feedback produces an oscillatory auxiliary-field response and a numerically converged, parameter-dependent reduction of wave-packet spreading. The packet remains dispersive rather than forming an interaction-free self-bound state. The framework further predicts a conditional logarithmic visibility relation under a calibrated interferometric readout and reversible finite-rate response loops under cyclic driving. These loops quantify conservative inertial lag rather than dissipated energy or intrinsic hysteretic memory. These results establish the phase-field duality as a minimal and falsifiable Hamiltonian extension in which coherence behaves as an elastic medium.
This deposit contains the paper “Emergence of a Quantum-Analogue Regime from Variational Dissipative–Conservative Dynamics” by Kevin Ellis Anderson. The paper analyses a regime of a previously introduced variational dissipative–conservative partial differential equation framework in which the conservative oscillatory sector admits an effective quantum-like description. Starting from deterministic Hamiltonian evolution coupled to auxiliary dissipative degrees of freedom, the work shows that an amplitude–phase decomposition of the oscillatory field yields a Schrödinger-type equation with an emergent effective Planck constant. The resulting dynamics are formally equivalent to quantum mechanics within a specific regime of validity, while remaining embedded in a broader variational system that also supports decoherent and classical limits. No modification of unitary evolution is introduced, and no stochastic elements, collapse postulates, or hidden variables are assumed. The paper does not propose a revision of quantum theory. Rather, it situates quantum behaviour as a regime arising from deterministic variational dynamics, with effective parameters determined by the underlying free-energy functional and coupling structure.
A mathematically explicit extension of quantum hydrodynamics is developed in which a scalar coherence field ΦG modifies phase transport and is driven by the information-geometric structure of the probability density together with probability transport itself. The construction starts from the Madelung representation Ψ = √ρ eiS/ℏ, augments the phase gradient by the covariant shift ∇S ↦ ∇S − αℏ∇ΦG, and defines the dynamics through a variational (ρ, S) sector together with a dissipative Onsager-type relaxation law for ΦG. This yields a closed PDE system consisting of a continuity equation, a modified Hamilton–Jacobi equation, and a coherence-field equation that reduces in the overdamped limit to an elliptic closure. The source of ΦG is neither bare mass density nor bare probability density: it is a local Fisher-information density together with probability transport, so that ΦG measures coherence demand. The field equations are written explicitly; the coupling sign is fixed by an energy-stability argument, the transport-forcing sign by a dissipation argument, and the induced coherence-pressure term is computed exactly. A structural no-signalling condition is obtained by restricting the nonlinearity to Fisher-marginal source functionals that are blind to the entanglement Fisher excess under marginalisation. A coarse-grained Yukawa sector is shown to admit a conditional Newtonian limit under explicitly stated screening and additivity assumptions; this remains a conjectural macroscopic regime rather than a completed derivation of gravity. The paper closes with a falsifiable numerical programme—ablation studies, dispersion diagnostics, Fisher-information monitoring, and an explicit pilot solver scaffold—together with a claim-status ledger, a testability map, and a development roadmap that separate what is defined, what is derived, what is heuristic, and what remains unproven. Keywords: quantum hydrodynamics; Fisher–Rao geometry; Madelung dynamics; coherence field; no-signalling; information geometry.
We develop a dissipative extension of classical mechanics based on a complex, and more generally quaternionic, action principle that endows every classical system with an intrinsic environment. Decomposing the action into conservative and divergence-induced components yields two coupled Hamilton Jacobi equations describing a dynamically intertwined system environment pair. This motivates a Dual Sector or Dual Environmental Interpretation (DSI/DEI), in which the additional degrees of freedom behave as an image sector exchanging energy, information, and phase with the system. Applying a generalized Madelung transform produces a nonlinear dissipative wave equation whose symmetric equilibrium limit reduces to the Schroedinger equation, with the quantum potential and linearity emerging from balanced intersector coupling. In this framework, the wavefunction is not fundamental but encodes the interaction geometry between system and environment, providing a classical origin for interference, amplitude phase coupling, and probabilistic structure. Extending the imaginary structure to multiple independent directions yields a multienvironment generalization capable of representing measurement-like processes, nonMarkovian memory, and entanglement type correlations. The formulation unifies aspects of dual-system models, hydrodynamic approaches, and non-Hermitian dynamics within a single action-based framework, and suggests that quantum mechanics corresponds to a stable symmetric phase of a broader dissipative classical theory.
This deposit contains the paper “Emergence of a Quantum-Analogue Regime from Variational Dissipative–Conservative Dynamics” by Kevin Ellis Anderson. The paper analyses a regime of a previously introduced variational dissipative–conservative partial differential equation framework in which the conservative oscillatory sector admits an effective quantum-like description. Starting from deterministic Hamiltonian evolution coupled to auxiliary dissipative degrees of freedom, the work shows that an amplitude–phase decomposition of the oscillatory field yields a Schrödinger-type equation with an emergent effective Planck constant. The resulting dynamics are formally equivalent to quantum mechanics within a specific regime of validity, while remaining embedded in a broader variational system that also supports decoherent and classical limits. No modification of unitary evolution is introduced, and no stochastic elements, collapse postulates, or hidden variables are assumed. The paper does not propose a revision of quantum theory. Rather, it situates quantum behaviour as a regime arising from deterministic variational dynamics, with effective parameters determined by the underlying free-energy functional and coupling structure.
The completed Chronoflux Atlas recovers the quantum regime as the coherent phase branch of conserved temporal transport. Continuity supplies the current, temporal order and positive kinetic response recovered in DPL-00 through DPL-04. Coherence adds a non-vanishing complex state with a physical phase and action scale. Once that descendant is admitted, variation returnsphase transport, topology quantises circulation, the Fisher-gradient term returns the Bohm quantum potential, and the density-phase equations recombine exactly into the Schrödinger equation. Quantum behaviour is therefore not attached to continuity by analogy. It is recovered as the lawful dynamics of a coherent continuity branch. The coherent action gives a conserved density current and a quantum Hamilton-Jacobi equation. On the domain where the amplitude does not vanish, the phase one-form is locally exact. Its global periods are integer winding numbers, giving circulation in units of ℎ/𝑚. Those integers persist under every continuous admissible evolution and can change only when a defect crosses the return path or the coherent amplitude vanishes. The apparent discontinuity of a quantum phase slip is thus the topological consequence of continuous evolution through a configuration where the phase ceases to be defined. The same structure returns the exact Madelung representation of a selected Schrödinger branch. On configuration space it yields the Born current, current velocity and quantum potential. Adding an actual configuration following that velocity is the Bohmian ontological completion, not an unstated consequence of continuity. Equivariance then proves persistence of quantum equilibrium. At field level, a shift-symmetric action closes a classical current, its quadratic perturbations recover a characteristic metric, and stationary canonical data produce a recoverable bosonic quantum state. Gauge selection, spin, fermionic statistics, outcome selection and Standard Model promotion remain separately indexed descendants. The paper also closes the non-ideal boundary. Multiplying a density by an arbitrary positive weight generates an exact continuity source and an exact transformed quantum potential; it cannot be presented as a free admissibility correction. Any departure from the closed branch requires a declared self-adjoint operator or trace-preserving open-system law. Admissibility, Recoverability and Persistence then distinguish a genuine quantum branch from incomplete phase data, singular nodal flow or an unreturned measurement model. The result closes coherence, quantised circulation and quantum response within the recovered tree of nature as such. Keywords: coherence; phase; circulation; quantum potential; Madelung transform; Schrödinger equation; Bohmian guidance; equivariance; quantum field reconstruction; Chronoflux Atlas
This work identifies a minimal, generic mechanism by which effective dissipation and viscosity emerge from fundamentally conservative dynamics in coherent systems. The analysis focuses on fields that admit an amplitude–phase decomposition and therefore support multiple excitation branches, specifically a gapped amplitude mode and gapless phase (Goldstone) modes. It is shown that mixed amplitude–phase coupling opens resonant decay channels in which energy stored in coherent amplitude excitations is transferred into pairs of phase modes. While the underlying equations of motion remain Hamiltonian and time-reversal invariant, coarse-graining over microscopic phase information converts this reversible energy exchange into effectively irreversible relaxation. The mechanism is developed analytically using a generic field-theoretic framework, supported numerically through structure-preserving simulations of a minimal two-field model, and interpreted as an emergent bulk-viscosity-like response. No explicit dissipative terms or external baths are introduced. A direct experimental realization is identified in trapped Bose–Einstein condensates, where well-established Beliaev-type mode coupling provides a laboratory analogue of the multi-branch interaction channel analyzed in this work. The results provide a unified and experimentally anchored framework for understanding how dissipation, viscosity, and relaxation can arise internally from conservative dynamics in coherent media, with relevance across condensed matter physics, field theory, and related contexts.