Effects of quantum geometric phase of a particle in an oscillating
hard-wall spherical trap
- URL: http://arxiv.org/abs/2212.12557v1
- Date: Fri, 23 Dec 2022 19:15:21 GMT
- Title: Effects of quantum geometric phase of a particle in an oscillating
hard-wall spherical trap
- Authors: Reza Moazzemi and Seyed Mahdi Fazeli
- Abstract summary: We obtain the geometric phase for states of a particle in a spherical infinite potential well with a moving wall.
We show that the absorption or radiation peaks will appear if the energy gap between the incident photon and the modified energy difference of two levels by the geometric phase.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We obtain the geometric phase for states of a particle in a spherical
infinite potential well with a moving wall in two different cases; First, when
the radius of the well increases (or decreases) monotonically. Second, when the
radius changes oscillatory. In the latter case, we have solved the Schrodinger
equation and found its solutions approximately. {We obtain the transition rate
for the possible real situation in an acousto-optic case which can reveal the
effect of the geometric phase. We show that the absorption or radiation peaks
will appear if the energy gap between the incident photon and the modified
energy difference of two levels by the geometric phase, is equal to the integer
multiple of oscillation frequency.
Related papers
- Geometric Phase of the Two-Particle Bethe Wavefunction [0.0]
We consider a problem of geometric phase generation in a system of two interacting bosons confined in a narrow ring potential with a localized defect.<n>It is shown that the interaction leads to increase of the geometric phase for a given contour of variations.<n>The work is motivated by earlier proposed ideas of quantum gyroscope and quantum accelerometer based on atomic Bose-Einstein condensates.
arXiv Detail & Related papers (2025-12-01T03:43:21Z) - Interference induced anisotropy in a two-dimensional dark state optical
lattice [0.0]
We describe a two-dimensional optical lattice for ultracold atoms with spatial features below the diffraction limit.
We numerically investigate the energy spectrum including decay from the excited state, and find that the adiabatic approximation is sound for strong coupling strengths.
arXiv Detail & Related papers (2023-04-01T12:02:25Z) - Measurement phase transitions in the no-click limit as quantum phase
transitions of a non-hermitean vacuum [77.34726150561087]
We study phase transitions occurring in the stationary state of the dynamics of integrable many-body non-Hermitian Hamiltonians.
We observe that the entanglement phase transitions occurring in the stationary state have the same nature as that occurring in the vacuum of the non-hermitian Hamiltonian.
arXiv Detail & Related papers (2023-01-18T09:26:02Z) - Geometric phases along quantum trajectories [58.720142291102135]
We study the distribution function of geometric phases in monitored quantum systems.
For the single trajectory exhibiting no quantum jumps, a topological transition in the phase acquired after a cycle.
For the same parameters, the density matrix does not show any interference.
arXiv Detail & Related papers (2023-01-10T22:05:18Z) - On the geometric phases in entangled states [0.0]
Correlation relations for the spin measurements on a pair of entangled particles are investigated.
In some cases the geometric phase information is carried over to the final bipartite entangled state.
arXiv Detail & Related papers (2022-08-30T06:56:27Z) - Photon generation and entanglement in a double superconducting cavity [105.54048699217668]
We study the dynamical Casimir effect in a double superconducting cavity in a quantum electrodynamics architecture.
We study the creation of photons when the walls oscillate harmonically with a small amplitude.
arXiv Detail & Related papers (2022-07-18T16:43:47Z) - Geometric phase assisted enhancement of non-inertial cavity-QED effects [0.0]
We study the geometric phase response of a circularly rotating detector inside an electromagnetic cavity.
We show that the accumulative nature of the geometric phase may facilitate the experimental observation of the resulting, otherwise feeble, non-inertial contribution.
arXiv Detail & Related papers (2022-04-13T18:26:43Z) - Geometric phase in a dissipative Jaynes-Cummings model: theoretical
explanation for resonance robustness [68.8204255655161]
We compute the geometric phases acquired in both unitary and dissipative Jaynes-Cummings models.
In the dissipative model, the non-unitary effects arise from the outflow of photons through the cavity walls.
We show the geometric phase is robust, exhibiting a vanishing correction under a non-unitary evolution.
arXiv Detail & Related papers (2021-10-27T15:27:54Z) - Observation of a non-Hermitian phase transition in an optical quantum
gas [0.0]
Quantum gases of light, as photons or polariton condensates in optical microcavities, are collective quantum systems.
We experimentally demonstrate a non-Hermitian phase transition of a photon Bose-Einstein condensate to a new dissipative phase.
arXiv Detail & Related papers (2020-10-29T17:59:10Z) - Scattering Amplitude Together with Thermodynamic Properties in the
Poschl-Teller Double Ring-Shaped Coulomb Potential [0.0]
We obtain the exact solution to the Dirac equation with the Poschl-Teller double ring-shaped Coulomb (PTDRSC) potential for any spin-orbit quantum number K.
The relativistic scattering amplitude for spin 1/2 particles in the field of this potential has been studied.
arXiv Detail & Related papers (2020-09-05T14:11:31Z) - Quantum-Clustered Two-Photon Walks [68.8204255655161]
We demonstrate a previously unknown two-photon effect in a discrete-time quantum walk.
Two identical bosons with no mutual interactions can remain clustered together.
The two photons move in the same direction at each step due to a two-photon quantum interference phenomenon.
arXiv Detail & Related papers (2020-03-12T17:02:35Z) - Zitterbewegung and Klein-tunneling phenomena for transient quantum waves [77.34726150561087]
We show that the Zitterbewegung effect manifests itself as a series of quantum beats of the particle density in the long-time limit.
We also find a time-domain where the particle density of the point source is governed by the propagation of a main wavefront.
The relative positions of these wavefronts are used to investigate the time-delay of quantum waves in the Klein-tunneling regime.
arXiv Detail & Related papers (2020-03-09T21:27:02Z)
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.