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Real Time Studies of Quantum Metastability

R. Holman, João P. Silva, D. Boyanovsky, D. Boyanovsky, Amandeep Singh

Published Jan 1, 1993• 0 citations
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Related papers

Frequency of Real-Time Actualisation via Metastable Entropy (FRAME): A Collapse-Based Interpretation of the Speed of Light as the Universal Refresh Rate of Classical Reality

Waldemar Marek Feldt

This paper presents the FRAME model (Frequency of Real-Time Actualisation via Metastable Entropy), an informational interpretation of the speed of light as the universal refresh rate of classical reality. Developed within the Feldt–Higgs Universal Bridge (F-HUB) framework, FRAME proposes that spacetime arises through discrete cycles of collapse in which quantum potential is rendered into classical structure. The model interprets c not only as a propagation constant but as the upper limit of collapse frequency that defines the tempo of spacetime actualisation. Each act of observation represents a partial resolution of quantum uncertainty, constrained by entropy and coherence thresholds. By expressing c as Δx / τ₍collapse₎, FRAME links light, information, and perception within a single operational cadence. The paper explores how metastable entropy maintains temporary coherence, allowing matter and geometry to stabilise as a synchronised informational process. Comparative analysis with Gheorghe’s Event-Driven First Passage Model (EPFPM) identifies parallel structures connecting informational decay, coherence limits, and quantum-to-classical transitions. This correspondence suggests empirical pathways for testing collapse viability through interferometric, optical, and coherence-based experiments. FRAME thus extends the F-HUB ontology from theoretical to measurable domains, interpreting reality as a dynamic field of continuous informational rendering where light is the medium, entropy the driver, and observation the sustaining mechanism.

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New treatment of quantum metastability

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Collapse of Metastability by the Quantum Fluctuation

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Real-time synchronization feedbacks for single-atom frequency standards: V - and Λ-structure systems

Mazyar Mirrahimi, Alain Sarlette, Pierre Rouchon

This paper proposes simple feedback loops, inspired from extremum-seeking, that use the photon emission times of a single quantum system following quantum Monte-Carlo trajectories in order to lock in real time a probe frequency to the system's transition frequency. Two specific settings are addressed: a 3-level system coupling one ground to two excited states (one highly unstable and one metastable) and a 3-level system coupling one excited to two ground states (both metastable). Analytical proofs and simulations show the accurate and robust convergence of probe frequency to system-transition frequency in the two cases.

IEEE Conference on Decision and Control (CDC)•Dec 1, 2010•1 citation

Metastability Driven by Soft Quantum Fluctuation Modes

Marco Zoli

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Real-time magnetic field noise correction using trapped-ion monitor qubits

Kyle DeBry, Agustin Valdes-Martinez, David Reens +2 more

We demonstrate a trapped-ion protocol in which a nearby, dedicated "monitor" qubit tracks magnetic-field drifts in real time without interrupting data-qubit operations. Using two $^{40}\mathrm{Ca}^+$ ions and the optical--metastable--ground architecture, we encode the data qubit in the ground-state manifold and the monitor qubit in a metastable-state manifold to achieve spectral separation. The monitor qubit senses common magnetic fluctuations during data-qubit experiments, enabling feedforward corrections to the qubit-control drives. Under applied magnetic noise with a realistic spectrum ($1/f^{2}$), the protocol maintains coherence and, when compared with interleaved calibration, it extends usable data-qubit probe times by up to a factor of ${\sim}\sqrt{2}$ and doubles the experimental duty cycle. These results establish monitor qubits as a scalable tool for real-time recalibration in quantum information processors.

quant-pharXiv:2511.04767•Nov 10, 2025•0 citations
This paper presents the FRAME model (Frequency of Real-Time Actualisation via Metastable Entropy), an informational interpretation of the speed of light as the universal refresh rate of classical reality. Developed within the Feldt–Higgs Universal Bridge (F-HUB) framework, FRAME proposes that spacetime arises through discrete cycles of collapse in which quantum potential is rendered into classical structure. The model interprets c not only as a propagation constant but as the upper limit of collapse frequency that defines the tempo of spacetime actualisation. Each act of observation represents a partial resolution of quantum uncertainty, constrained by entropy and coherence thresholds. By expressing c as Δx / τ₍collapse₎, FRAME links light, information, and perception within a single operational cadence. The paper explores how metastable entropy maintains temporary coherence, allowing matter and geometry to stabilise as a synchronised informational process. Comparative analysis with Gheorghe’s Event-Driven First Passage Model (EPFPM) identifies parallel structures connecting informational decay, coherence limits, and quantum-to-classical transitions. This correspondence suggests empirical pathways for testing collapse viability through interferometric, optical, and coherence-based experiments. FRAME thus extends the F-HUB ontology from theoretical to measurable domains, interpreting reality as a dynamic field of continuous informational rendering where light is the medium, entropy the driver, and observation the sustaining mechanism.
This paper proposes simple feedback loops, inspired from extremum-seeking, that use the photon emission times of a single quantum system following quantum Monte-Carlo trajectories in order to lock in real time a probe frequency to the system's transition frequency. Two specific settings are addressed: a 3-level system coupling one ground to two excited states (one highly unstable and one metastable) and a 3-level system coupling one excited to two ground states (both metastable). Analytical proofs and simulations show the accurate and robust convergence of probe frequency to system-transition frequency in the two cases.
We demonstrate a trapped-ion protocol in which a nearby, dedicated "monitor" qubit tracks magnetic-field drifts in real time without interrupting data-qubit operations. Using two 40Ca+^{40}\mathrm{Ca}^+40Ca+ ions and the optical--metastable--ground architecture, we encode the data qubit in the ground-state manifold and the monitor qubit in a metastable-state manifold to achieve spectral separation. The monitor qubit senses common magnetic fluctuations during data-qubit experiments, enabling feedforward corrections to the qubit-control drives. Under applied magnetic noise with a realistic spectrum (1/f21/f^{2}1/f2), the protocol maintains coherence and, when compared with interleaved calibration, it extends usable data-qubit probe times by up to a factor of ∼2{\sim}\sqrt{2}∼2​ and doubles the experimental duty cycle. These results establish monitor qubits as a scalable tool for real-time recalibration in quantum information processors.