Interaction of a wave packet with potential structures moving with acceleration

• URL: http://arxiv.org/abs/2008.06573v1
• Date: Fri, 14 Aug 2020 21:11:14 GMT
• Title: Interaction of a wave packet with potential structures moving with acceleration
• Authors: M.A. Zakharov, G.V.Kulin, A.I. Frank
• Abstract summary: The paper is devoted to a numerical study of the problem of interaction of the wave packet with potential structures moving with constant acceleration. The magnitude of the shift in the spectrum is determined by the product of acceleration by group delay time.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The paper is devoted to a numerical study of the problem of interaction of the wave packet with potential structures moving with constant acceleration. In all the cases considered the result of the interaction is a change in the velocity spectrum. In the first approximation the magnitude of the shift in the spectrum is determined by the product of acceleration by group delay time. Also, as the direction of acceleration reverses the effect changes its sign. The results are completely consistent with the idea of universality of the Effect of Acceleration which consists in a change in the frequency of the wave at scattering on an object moving with acceleration.

Related papers

• Velocity effects slightly mitigating the quantumness degradation of an Unruh-DeWitt detector [0.0]
  This work investigates the velocity effects on information degradation due to the Unruh effect in accelerated quantum systems.<n>The quantum systems studied were: accelerated single-qubit, quantum interferometric circuit, and which-path distinguishability circuit.<n>Results show that the addition of the non-relativistic, transverse and constant motion of an accelerated detector can play a protective role in quantumness in systems at high accelerations.
  arXiv  Detail & Related papers  (2025-09-30T20:01:24Z)
• Memory Effects and Entanglement Dynamics of Finite time Acceleration [0.0]
  We construct a smooth trajectory in Minkowski spacetime that is inertial in the past and future but undergoes uniform acceleration for a finite duration.<n>We analyze the behavior of an Unruh-DeWitt detector following such a trajectory and explore the dependence of complete positivity (CP) divisibility on the detector's frequency, acceleration, and the duration of acceleration.
  arXiv  Detail & Related papers  (2025-08-11T10:34:03Z)
• Effects of acceleration on interatomic interactions [0.0]
  We investigate how acceleration influences the interaction between two ground-state atoms.<n>The dependence of each component on acceleration and interatomic separation $L$ generally differs.
  arXiv  Detail & Related papers  (2025-06-19T00:54:43Z)
• Acceleration-induced transport of quantum vortices in joined atomtronic circuits [0.0]
  acceleration influences transfer of persistent currents between two density-connected, ring-shaped atomic Bose-Einstein condensates. We find that the acceleration modifies both the density and phase dynamics between the rings, leading to a bias in the periodic vortex oscillations. We analyze how this transfer depends on the weak-link amplitude, the initial persistent current configuration, and the acceleration strength and direction.
  arXiv  Detail & Related papers  (2024-10-31T11:02:10Z)
• Adiabatic versus instantaneous transitions from a harmonic oscillator to an inverted oscillator [49.1574468325115]
  Mean energy increases when the frequency returns to its initial value, and the increment coefficient is determined by the exponent in the power law of the frequency crossing zero. If the frequency becomes imaginary, the absolute value of mean energy increases exponentially, even in the adiabatic regime. Small corrections to the leading terms of simple adiabatic approximate formulas are crucial in this case, due to the unstable nature of the motion.
  arXiv  Detail & Related papers  (2024-03-11T02:03:19Z)
• Particle motion associated with wave function density gradients [0.0]
  We study the quantum mechanical motion of massive particles in a system of two coupled waveguide potentials. Regions of gain and loss, as described by imaginary potentials, are shown to speed up the motion of particles.
  arXiv  Detail & Related papers  (2022-12-22T10:02:47Z)
• Acceleration effect and the possibility of its observation in neutron-optical experiment [0.0]
  The acceleration effect hypothesis in quantum mechanics has recently been confirmed by numerically solving a number of problems. Since the time of neutron interaction with the nucleus is very short, the observation of the acceleration effect during scattering by nuclei requires them to move with a very high acceleration.
  arXiv  Detail & Related papers  (2022-10-18T11:51:10Z)
• Wave manipulation via delay-engineered periodic potentials [55.41644538483948]
  We discuss the semi-classical transverse trapping of waves by means of an inhomogeneous gauge field. We show that, due to the Kapitza effect, an effective potential proportional to the square of the transverse derivative of the delay arises.
  arXiv  Detail & Related papers  (2022-07-27T11:45:32Z)
• Tunneling Gravimetry [58.80169804428422]
  We examine the prospects of utilizing matter-wave Fabry-P'erot interferometers for enhanced inertial sensing applications. Our study explores such tunneling-based sensors for the measurement of accelerations in two configurations.
  arXiv  Detail & Related papers  (2022-05-19T09:22:11Z)
• Frequency combs with parity-protected cross-correlations from dynamically modulated qubit arrays [117.44028458220427]
  We develop a general theoretical framework to dynamically engineer quantum correlations in the frequency-comb emission from an array of superconducting qubits in a waveguide. We demonstrate, that when the resonance of the two qubits are periodically modulated with a $pi$ phase shift, it is possible to realize simultaneous bunching and antibunching in cross-correlations of the scattered photons from different sidebands.
  arXiv  Detail & Related papers  (2022-03-01T13:12:45Z)
• Effect of interactions in the interference pattern of Bose Einstein condensates [0.0]
  We present a combined experimental and theoretical investigation of the interference profile of expanding $87$Rb condensates. We come to the different conclusion that the mutual interaction produces local modifications of the condensate phase only in the region where the wavepackets overlap.
  arXiv  Detail & Related papers  (2020-09-03T19:41:47Z)
• 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)
• Cat states in a driven superfluid: role of signal shape and switching protocol [62.997667081978825]
  We investigate the behavior of a one-dimensional Bose-Hubbard model whose kinetic energy is made to oscillate with zero time-average. We analyze the robustness of this unconventional ground state against variations of a number of system parameters.
  arXiv  Detail & Related papers  (2020-05-11T15:15:06Z)
• Molecular alignment echoes probe collision-induced rotational-speed changes [0.0]
  Collisions reduce the echo amplitude all the more efficiently when the echo appears late. Measurements and calculations demonstrate that collisions reduce the echo amplitude all the more efficiently when the echo appears late.
  arXiv  Detail & Related papers  (2020-02-04T10:27:24Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.