Abstract This study develops a strictly classical time-delayed model of the hydrogen atom, with retarded Coulomb forces and finite-difference inertia over a state-dependent delay, to reproduce key quantum features without quantum postulates. The delay law is anchored in the Abraham, Lorentz and Dirac self-time and fixed by matching the Rydberg constant, thereby determining a neutral delay scale and an effective energy frequency proportionality without inserting Planck’s constant into the equations of motion. With this single calibration, a neutral mean-power condition and a phase-locking rule between orbital motion and delay generate a discrete ladder of radii and energies reproducing the Rydberg spectrum without imposing angular-momentum quantisation. Neutral radial and azimuthal phases, constructed from the retarded trajectory, define two indices that act as classical analogues of principal and orbital quantum numbers and satisfy simple sum rules for elliptic orbits, mirroring Sommerfeld’s extension of the Bohr model. Interpreting the neutral delay as a minimal time window for inferring position and velocity yields a classical position–momentum error product of order Planck’s constant. In weakly driven settings, non-zero mean neutral power turns the delayed inertial channel into an energy reservoir, allowing deterministic level-to-level transitions between long-lived neutral orbits and preventing the catastrophic radiative collapse of the Rutherford atom.
Abstract This study develops a strictly classical time-delayed model of the hydrogen atom, with retarded Coulomb forces and finite-difference inertia over a state-dependent delay, to reproduce key quantum features without quantum postulates. The delay law is anchored in the Abraham, Lorentz and Dirac self-time and fixed by matching the Rydberg constant, thereby determining a neutral delay scale and an effective energy frequency proportionality without inserting Planck’s constant into the equations of motion. With this single calibration, a neutral mean-power condition and a phase-locking rule between orbital motion and delay generate a discrete ladder of radii and energies reproducing the Rydberg spectrum without imposing angular-momentum quantisation. Neutral radial and azimuthal phases, constructed from the retarded trajectory, define two indices that act as classical analogues of principal and orbital quantum numbers and satisfy simple sum rules for elliptic orbits, mirroring Sommerfeld’s extension of the Bohr model. Interpreting the neutral delay as a minimal time window for inferring position and velocity yields a classical position–momentum error product of order Planck’s constant. In weakly driven settings, non-zero mean neutral power turns the delayed inertial channel into an energy reservoir, allowing deterministic level-to-level transitions between long-lived neutral orbits and preventing the catastrophic radiative collapse of the Rutherford atom.
Niels Bohr’s model of the hydrogen and hydrogen-like atoms, in which the electron is allowed to revolve in certain circular orbits around the nucleus, was extended by Arnold Sommerfeld to allow for the possibility of elliptical orbits. Each elliptical orbit was constrained by two quantization conditions specified by a positive integer nφ and a non-negative integer nr. If, in the presence of the attractive Coulomb force between the electron and the nucleus, the dynamics of the atom were taken to be governed by the Newtonian laws of motion, the energy Ɛ of the two-particle system was found to be a function of the positive integer n = nr + nφ. The atomic energy levels thus exhibited an n-fold degeneracy, which would be lifted in the presence of external electric or magnetic fields, thus accounting for the fine-structure of the spectral lines emitted by the atom—phenomena observed, respectively, in the Stark effect and the Zeeman effect. Sommerfeld also examined the behavior of his elliptical orbits by allowing the revolving electron to obey Einstein’s relativistic dynamics. In this case, the energy-level degeneracies were lifted (even in the absence of external perturbations), and the elliptical orbits were found to precess around the nucleus—similarly to the precession of, say, the orbit of the planet Mercury around the Sun. What is astonishing about Sommerfeld’s relativistic expression of the energy Ɛ as a function of nφ and nr is that it is precisely the same expression as obtained for hydrogen and hydrogen-like atoms from Dirac’s equation, which came more than a decade later. Recall that the spin of the electron was not yet discovered when Sommerfeld developed his model, and that in Dirac’s fully-relativistic quantum mechanics, the spectral fine-structure arises from the coupling of the electron’s spin to its orbital motion. The present paper provides a streamlined yet detailed account of Sommerfeld’s elliptical orbits in hopes of bringing about a deeper appreciation for the miraculous coincidence of Sommerfeld’s result with that derived from Dirac’s equation.
Abstract We revisit the Bohr model of the atom through Brownian motion of the electron and the principles of stochastic optimal control. The electron is assumed to have a definite but random position, represented by a single real-valued stochastic process in physical space whose probability density obeys the Fokker–Planck (FP) equation. Because Brownian paths are not differentiable, the process carries two mean drifts, one for each direction of time. We treat the forward drift as the control field, while the backward drift is fixed by the density of the same process. The running cost of the control problem combines the two drifts into a time-symmetric kinetic term, and through the backward drift it inherits a dependence on the density, so the value becomes a functional on density space. Bellman’s dynamic-programming principle requires the control to minimize the expected action from every intermediate time and density onward. The drift therefore emerges as a feedback law on position and density, rather than from the global stationarity of a stochastic action. The resulting law-dependent HJB–FP system reduces to the Schrödinger equation once the standard single-valuedness condition is imposed on the reconstructed phase. For stationary hydrogen states the theory yields explicit drift fields in spherical coordinates and reproduces the standard radial and angular kinetic-energy averages of the quantum operator formalism. Direct trajectory-level simulations of the electron’s stochastic motion around the nucleus show the coordinate distributions converging to the Born marginals and the time-averaged energies reproducing the quantum expectation values. For the 2 p eigenstates with magnetic quantum number m = ± 1 , a phase-driven azimuthal drift makes the simulated trajectories circulate at the analytically predicted rate, and the angular momentum accumulated from the raw trajectory increments converges to exactly L z = m ℏ . The angular-momentum quantization postulated in the Bohr model thus reappears as a property of the simulated stochastic motion.
Consideration of the Rydberg Series leads to a model for the hydrogen atom in which the variable of quantisation is the Lorentz factor, Gamma, and not angular momentum as postulated by Niels Bohr and integral to current theories. This is consistent with an atom in which the electron is seen as an objectively real particle having deterministic position and velocity. The electron is seen to orbit at a constant radius irrespective of the energy state of the atom and so there is no change in potential energy between energy states. All of the energy changes are therefore kinetic in nature. The model also provides a simple physical explanation of the hitherto mysterious Fine Structure Constant.
This paper develops and verifies a physics-first description of the hydrogen-atom transition from the L shell (n = 2) to the K shell (n = 1) by combining the historical Bohr model of atomic structure with classical Maxwell electrodynamics. Beginning with the Coulomb force, centripetal dynamics, and Bohr’s angular-momentum quantization condition, the analysis derives the allowed orbital radii, electron velocities, angular momenta, kinetic energies, electrostatic potential energies, and total bound-state energies of the hydrogen atom. For the n = 2 → n = 1 transition, the calculated energy difference is approximately 10.2 eV, corresponding through the Planck–Einstein relation ΔE = hν to a frequency of approximately 2.47 × 10¹⁵ Hz and a wavelength near 121.6 nm, consistent with the hydrogen Lyman-α transition. The emitted radiation is then examined through Maxwell’s equations and the vacuum constitutive relations. The resulting electromagnetic-wave description yields the transverse electric and magnetic fields together with the associated electromagnetic energy density, Poynting energy flux, momentum density, radiation pressure, and Maxwell stress tensor. In this way, the atomic energy difference obtained from the Bohr model is connected quantitatively to the classical propagation properties of the outgoing electromagnetic radiation. The derivation is mathematically consistent as a historical Bohr–Maxwell reconstruction, but it does not constitute a closed dynamical theory of spontaneous emission. The essential bridge between discrete atomic energy levels and the continuous Maxwell field is supplied by the quantum frequency condition ΔE = hν. Neither classical Maxwell electrodynamics nor Newtonian orbital mechanics independently derives this relation, and classical Maxwell theory does not by itself quantize the emitted radiation energy into individual photons. A complete treatment of spontaneous emission, transition probabilities, radiative lifetimes, and photon-field quantization requires quantum mechanics and ultimately quantum electrodynamics. Accordingly, the framework is presented as a verified correspondence between established limiting descriptions rather than as a replacement for Schrödinger wave mechanics, Dirac theory, or quantum electrodynamics. By clearly separating the atomic bound-state calculation, the quantum energy-frequency bridge, and the classical electromagnetic propagation problem, the analysis provides a rigorous conceptual and mathematical foundation for subsequent Maxwell–Schrödinger, Dirac–Maxwell, quantum-electrodynamic, Maxwell–Scretching, and Scretching Quantum Chain formulations of hydrogenic radiative transitions.
Even after extensive research in Quantum Mechanics, we are still unable to visualize instant-to-instant motion of an electron in hydrogen atom. That is because in QM treatment, potential energy term has been mistakenly assumed to be time-independent instead of depending on the instant-to-instant varying position of the orbiting electron [1]. This has led to wrong and weird solutions for the electron motion in hydrogen atom. Before the advent of wave mechanics, Sommerfeld model of elliptical electron orbits was able to explain most features of hydrogen spectra, except for the features associated with electron spin and magnetic moment interactions. However, the Sommerfeld elliptical orbits were of kinematic origin and could not provide visualization of instant-to-instant dynamic motion of the orbiting electron. Contrary to the QM perspective, we find that central core of the electron behaves as a classical particle while its electrostatic field behaves as a wave phenomenon. As such an electron under Coulomb force moves strictly in accordance with Newtonian laws of motion. In this paper, we develop dynamic electron orbits in hydrogen atom by using energy and angular momentum conservation principle in central force field. We have shown that during photon emission, angular momentum of the orbiting electron is changed by ħ due to recoil action. This may be the origin of various quantization rules. During emission of a photon, elliptical orbit transitions are also computed and plotted. Orbit transition time is of the order of 10-16 seconds. We have extended this methodology to compute electron orbits in hydrogen molecular bond and computed the H2 bond energy.
Abstract The Kinematics of Quantum Space: A Classical Proof of Orbital Stability and Trajectory Continuity (Part II) Building upon the dense, discrete, nonlocal medium defined in Part I (Quantum Space, density ratio ρ = 6.54×10¹²), we prove that the electron in a hydrogen atom follows a strictly deterministic, continuous, and classical trajectory. No probabilistic interpretation, wave function collapse, or irreducible uncertainty is required. 1. Orbital velocity – six independent derivations Starting from the Bohr radius (a₀ = 5.291772×10⁻¹¹ m) and the electron mass (mₑ = 9.109384×10⁻³¹ kg), we derive the ground state orbital velocity through six independent physical paths: Galilean kinematics (v = s/t) Bohr quantization condition (mₑ v a₀ = ħ) Fine‑structure constant (v = α c, α = 1/137.036) Kinetic energy (ionization energy 13.6 eV) Coulomb–centripetal force balance Direct experimental transit time (attosecond measurements) All six converge identically to: v=e22ϵ0h=αc≈2.188×106 m/sv=2ϵ0he2=αc≈2.188×106m/s The electron is a real satellite of the nucleus, not a probability cloud. 2. Orbital stability – zero radiation from destructive interference The classical objection (Larmor's formula predicts radiative collapse within ≈47 ps) assumes a point charge. For a standing wave charge distribution satisfying 2πr = nλ (Bohr condition), we compute the Liénard–Wiechert potentials and the far‑field Poynting vector explicitly: S=1μ0Erad×Brad=0,Ptotal=∮S⋅dA=0S=μ01Erad×Brad=0,Ptotal=∮S⋅dA=0 The ground state does not radiate. Energy is locked in the standing wave. Radiation occurs only during transitions (n→m), exactly as observed in atomic spectroscopy. 3. Quantum jump as a vertical ballistic throw – continuity proven The transition n=1 → n=2 (energy ΔE = 10.2 eV) is treated as a classical vertical throw in an effective constant acceleration field g_q: gq=FCoulomb(a0)me=kee2mea02≈9.043×1022 m/s2gq=meFCoulomb(a0)=mea02kee2≈9.043×1022m/s2 Jump height: h = r₂ - r₁ = 1.5875×10⁻¹⁰ mEffective initial velocity (constant‑g approximation): v₀ ≈ 5.36×10⁶ m/sTime of ascent: t_up = v₀/g_q ≈ 59 asTotal flight time: t_total = 118 as The position function y(t) = v₀ t - ½ g_q t² is continuous and differentiable (C¹ class). The illusion of an instantaneous "quantum jump" arises solely because t_total is shorter than the temporal resolution of most instruments (Δt_instr ≫ 118 as). The trajectory exists – we are simply not fast enough to see it. 4. Spin as toroidal vortex kinematics – no superluminal speed Spin (S_z = ±½ħ) is not a rigid sphere rotation. We model the electron as a toroidal charge distribution with major radius R. The no‑superluminal condition v = ωR < c yields a lower radius bound: Rmin=ℏ2mec≈1.93×10−13 mRmin=2mecℏ≈1.93×10−13m This is physically reasonable (≈300× smaller than the Bohr radius). Quantization to ±½ħ follows from resonance stability: only prograde (+) and retrograde (–) synchronous rotations are stable, analogous to the Moon (synchronous) and Venus (retrograde). 5. Measurement as ballistic collision – Heisenberg is technical, not fundamental A typical measurement photon (λ = 0.1 nm, E ≈ 12.4 keV) carries momentum: pphoton=hλ≈6.626×10−24 kg⋅m/spphoton=λh≈6.626×10−24kg⋅m/s The electron's orbital momentum is: pelectron=mev≈1.993×10−24 kg⋅m/spelectron=mev≈1.993×10−24kg⋅m/s Ratio: p_photon / p_electron ≈ 3.33. The photon delivers more momentum than the electron possesses in its orbit. Measurement is not passive observation – it is a ballistic collision (Compton scattering). The post‑collision electron momentum is fully determinable if both the energy and scattering angle of the outgoing photon are measured precisely. "Uncertainty" is a technical deficiency of incomplete measurement, not a law of nature. 6. Five falsifiable predictions Electron transit time across one Bohr diameter: 48.4 ± 5 as (testable with attosecond spectroscopy). n=1 → n=2 transition duration: 100–120 as (continuous, not instantaneous). Heisenberg product Δx·Δp → 0 as detector precision → ∞ (no fundamental lower bound). Bell inequality violations decrease as measurement impulse strength decreases (weak measurement regime). Residual "quantum randomness" equals unmodeled environmental force noise; full force accounting restores classical determinism. 7. Conclusion All calculations use only standard constants and classical equations (Newton, Maxwell, Coulomb, Compton). No new postulates are introduced. The electron's path exists, is continuous, and follows deterministic mechanics. Quantum mysticism – wave function collapse, irreducible uncertainty, non‑locality as magic – is replaced by scale‑inverted classical physics operating within the dense geometry of Quantum Space defined in Part I. Keywords: orbital stability, Larmor paradox, destructive interference, Poynting vector, quantum jump as ballistic throw, attosecond transit time, toroidal spin, Compton scattering measurement, Bell inequalities reinterpretation, classical determinism, falsifiable predictions, scale inversion. PACS: 03.65.Sq (Semiclassical theories), 03.65.Ta (Foundations), 31.15.xk (Classical treatments of atomic structure), 32.80.t (Atomic transitions), 42.50.Ct (Quantum optics, measurement).MSC: 81Q05 (Closed and approximate solutions), 70F05 (Two‑body problem, Kepler), 78A35 (Motion of charged particles), 83A05 (Special relativity).arXiv: quant-ph, physics.class-ph, physics.atom-ph.