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A pseudo-random and non-point Nelson-style process [49.1574468325115]
We take up the idea of Nelson's processes, the aim of which was to deduce Schr"odinger's equation. We consider deterministic processes which are pseudo-random but which have the same characteristics as Nelson's processes.
arXiv Detail & Related papers (2025-04-29T16:18:51Z)
Time evolution of randomness in Bell's experiment indicates 'Realism' is false [41.94295877935867]
We measure time evolution of Minimum Entropy and (estimated) Kolmogorov's Complexity of binary time series during short pulses. We compare evolution between the cases with stations placed close and separated 24m in straight line. This provides a clue about which one of the hypotheses necessary for the derivation and observation of Bell's inequalities is false.
arXiv Detail & Related papers (2025-04-04T20:39:15Z)
Bell correlations between momentum-entangled pairs of $^4\text{He}^*$ atoms [0.0]
Nonlocal entanglement between pair-correlated particles is a highly counter-intuitive aspect of quantum mechanics. Bell's inequality framework has enabled the demonstration of such entanglement in photons and atomic internal states. We report the experimental observation of Bell correlations in motional states of momentum-entangled ultracold helium atoms.
arXiv Detail & Related papers (2025-02-18T00:01:41Z)
Temporal Bell inequalities in non-relativistic many-body physics [0.0]
We show that a temporal Clauser-Horne inequality for two spins is violated for a nonzero time interval between the measurements if the two measured parties are connected by a spin chain. Our result suggests that, as expected in a many-body setup, the Lieb-Robinson bound substitutes the speed of light as the fundamental limit for the spreading of information.
arXiv Detail & Related papers (2024-09-25T19:00:47Z)
Measuring the Evolution of Entanglement in Compton Scattering [101.11630543545151]
The behavior of quantum entanglement during scattering is identical to the behavior of initially classically correlated photons up to a constant factor equal to two. Our dedicated experiment with photons confirms these results and explains the "Puzzle of Decoherence" observed recently.
arXiv Detail & Related papers (2024-06-20T14:21:23Z)
On the Preservation and Manifestation of Quantum Entanglement [0.0]
Bell experiments have confirmed that quantum entanglement is an inseparable correlation but there is no faster-than-light influence when a local measurement is performed. We show here that even though the inseparable correlation may be initially created by previous physical interaction between the two particles, the preservation and manifestation of such inseparable correlation are achieved through extremizing an information metric.
arXiv Detail & Related papers (2023-11-10T07:33:13Z)
Non-Rayleigh signal of interacting quantum particles [0.0]
The dynamics of two interacting quantum particles on a weakly disordered chain is investigated. The fluctuation profile of the signal can discern whether the interacting parties are behaving like identical bosons, fermions, or distinguishable particles.
arXiv Detail & Related papers (2023-05-02T18:59:37Z)
Identical damped harmonic oscillators described by coherent states [0.0]
We take a single coherent state and compute the relative entropy of coherence, $C_r$, in the energy, position and momentum bases. Coherence is computed for a superposition of two coherent states, a cat state, and also a superposition of two cat states in the energy basis as a function of separation. Considering a system of two non-interacting DHOs, the effect of quantum statistics is studied on the coherence of reduced single-particle states.
arXiv Detail & Related papers (2022-09-02T09:48:36Z)
Partition of kinetic energy and magnetic moment in dissipative diamagnetism [20.218184785285132]
We analyze dissipative diamagnetism, arising due to dissipative cyclotron motion in two dimensions, in the light of the quantum counterpart of energy equipartition theorem. The expressions for kinetic energy and magnetic moment are reformulated in the context of superstatistics.
arXiv Detail & Related papers (2022-07-30T08:07:28Z)
Entanglement-interference complementarity and experimental demonstration in a superconducting circuit [13.591959156678946]
Quantum entanglement between an interfering particle and a detector for acquiring the which-path information plays a central role for enforcing Bohr's complementarity principle. Here we find an equality for quantifying the relation between this entanglement and the fringe visibility. We experimentally demonstrate this relation with a superconducting circuit, where a resonator serves as a which-path detector for an interfering qubit.
arXiv Detail & Related papers (2022-03-13T02:49:11Z)
Mesoscopic quantum superposition states of weakly-coupled matter-wave solitons [58.720142291102135]
We establish quantum features of an atomic soliton Josephson junction (SJJ) device. We show that the SJJ-model in quantum domain exhibits unusual features due to its effective nonlinear strength proportional to the square of total particle number. We have shown that the obtained quantum state is more resistant to few particle losses from the condensates if tiny components of entangled Fock states are present.
arXiv Detail & Related papers (2020-11-26T09:26:19Z)
Entanglement of Two Jaynes-Cummings Atoms In Single Excitation Space [18.6689323854151]
We study the entanglement dynamics of two atoms coupled to their own Jaynes-Cummings cavities in single-excitation space. Our analysis suggests that there exist collapses and recovers in the entanglement dynamics.
arXiv Detail & Related papers (2020-09-23T18:25:13Z)
Quantum time dilation in atomic spectra [62.997667081978825]
We demonstrate how quantum time dilation manifests in a spontaneous emission process. The resulting emission rate differs when compared to the emission rate of an atom prepared in a mixture of momentum wave packets. We argue that spectroscopic experiments offer a technologically feasible platform to explore the effects of quantum time dilation.
arXiv Detail & Related papers (2020-06-17T18:03:38Z)
External and internal wave functions: de Broglie's double-solution theory? [77.34726150561087]
We propose an interpretative framework for quantum mechanics corresponding to the specifications of Louis de Broglie's double-solution theory. The principle is to decompose the evolution of a quantum system into two wave functions. For Schr"odinger, the particles are extended and the square of the module of the (internal) wave function of an electron corresponds to the density of its charge in space.
arXiv Detail & Related papers (2020-01-13T13:41:24Z)
Disentanglement as particles separate [0.0]
Disentanglement reduces the pure isotropic entangled EPR state to a mixed anisotropic state.<n>Applying disentanglement to EPR pairs of photons shows that entanglement is characterized by various two-particle symmetry properties.
arXiv Detail & Related papers (2003-10-03T17:12:51Z)

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