scholarly journals Geometric Phase Accumulation-Based Effects in the Quantum Dynamics of an Anisotropically Trapped Ion

2005 ◽  
Vol 23 (3-4) ◽  
pp. 125-134
Author(s):  
M. Scala ◽  
B. Militello ◽  
A. Messina
Keyword(s):  
Geometric Phase ◽  
Quantum Dynamics ◽  
Trapped Ion ◽  
Phase Accumulation

scholarly journals Dynamic and geometric phase accumulation by Gaussian-type modes in first-order optical systems

2008 ◽  
Vol 33 (15) ◽  
pp. 1659 ◽  
Author(s):  
Tatiana Alieva ◽  
Martin J. Bastiaans
Keyword(s):  
Geometric Phase ◽  
Optical Systems ◽  
First Order ◽  
Gaussian Type ◽  
Phase Accumulation

scholarly journals Quantum dynamics of magnetic and electric dipoles and the geometric phase

2004 ◽  
Vol 69 (6) ◽  
Author(s):  
Claudio Furtado ◽  
Carlos Alberto de Lima Ribeiro
Keyword(s):  
Geometric Phase ◽  
Quantum Dynamics ◽  
Electric Dipoles

Geometric phases modified by a Lorentz-symmetry violation background

2015 ◽  
Vol 30 (14) ◽  
pp. 1550072 ◽  
Author(s):  
L. R. Ribeiro ◽  
E. Passos ◽  
C. Furtado ◽  
J. R. Nascimento
Keyword(s):  
Electromagnetic Field ◽  
Geometric Phase ◽  
Quantum Dynamics ◽  
Dipole Moments ◽  
External Electromagnetic Field ◽  
Lorentz Symmetry ◽  
Nonrelativistic Quantum ◽  
Symmetry Violation ◽  
Electric Dipole Moments ◽  
Geometric Phases

We analyze the nonrelativistic quantum dynamics of a single neutral spin-half particle, with nonzero magnetic and electric dipole moments, moving in an external electromagnetic field in the presence of a Lorentz-symmetry violating background. We also study the geometric phase for this model taking in account the influence of the parameter that breaks the Lorentz-symmetry. These geometric phases are used to impose an upper bound on the background magnitude.

scholarly journals Geometric phase gates in dissipative quantum dynamics

2020 ◽  
Vol 102 (3) ◽  
Author(s):  
Kai Müller ◽  
Kimmo Luoma ◽  
Walter T. Strunz
Keyword(s):  
Geometric Phase ◽  
Quantum Dynamics

scholarly journals Polariton Induced Conical Intersection and Berry Phase

2021 ◽  
Author(s):  
Marwa Farag ◽  
Arkajit Mandal ◽  
Pengfei Huo
Keyword(s):  
Population Dynamics ◽  
Angular Distribution ◽  
Geometric Phase ◽  
Quantum Dynamics ◽  
Berry Phase ◽  
Optical Cavity ◽  
The Other ◽  
Conical Intersection ◽  
Fragment Angular Distribution ◽  
Molecular Rotations

We investigate the Polariton induced conical intersection (PICI) created from coupling a diatomicmolecule with the quantized photon mode inside an optical cavity, and the corresponding BerryPhase effects. We use the rigorous Pauli-Fierz Hamiltonian to describe the quantum light-matterinteractions between a LiF molecule and the cavity, and exact quantum propagation to investigatethe polariton quantum dynamics. The molecular rotations relative to the cavity polarization directionplay a role as the tuning mode of the PICI, resulting in an effective CI even within a diatomic molecule.To clearly demonstrate the dynamical effects of the Berry phase, we construct two additional modelsthat have the same Born-Oppenheimer surface, but the effects of the geometric phase are removed.We find that when the initial wavefunction is placed in the lower polaritonic surface, the Berryphase causes aπphase-shift in the wavefunction after the encirclement around the CI, indicatedfrom the nuclear probability distribution. On the other hand, when the initial wavefunction is placedin the upper polaritonic surface, the geometric phase significantly influences the couplings betweenpolaritonic states and therefore, the population dynamics between them. These BP effects are furtherdemonstrated through the photo-fragment angular distribution. PICI created from the quantizedradiation field has the promise to open up new possibilities to modulate photochemical reactivities.

scholarly journals Fidelity and concurrence of entangled qudits between a trapped ion and two laser beams

2021 ◽  
Vol 67 (5 Sep-Oct) ◽  
Author(s):  
Rasim Dermez ◽  
S. Abdel-Khalek ◽  
E. M. Khalil
Keyword(s):  
Information Processing ◽  
Quantum Optics ◽  
Time Dependence ◽  
Geometric Phase ◽  
Dynamical Behavior ◽  
Classical Field ◽  
Time Dependent ◽  
Laser Beams ◽  
Trapped Ion ◽  
The Impact

A quantum scheme is presented by which a three-level trapped ion interacts with a two laser beams in the absence and presence of the e®ect of classical  field. We analyze the impact of the classical ¯eld and the Lamb-Dicke parameter (LDP) on the dynamical behavior of entanglement quanti¯er, population probabilities and the geometric phase. Based on four different variations of these two effects, LDP = 0.1, LDP=0.01 and ¯ = 0.0, ¯ = 0.49, the time dependence of geometric phase and populations probabilities are shown. The ¯nding emphasizes that both the time-dependent and LDP play an important role in the development of the entanglement, the geometric phase, ¯delity, and populations probabilities. This in-sight may be very useful in various applications in quantum optics and information processing.

Quantum Dynamics of a Single Trapped Ion Interacting with Standing Laser Pulses

2004 ◽  
Vol 42 (4) ◽  
pp. 599-604 ◽  
Author(s):  
Li Fei ◽  
Hai Wen-Hua ◽  
Chong Gui-Shu ◽  
Xie Qiong-Tao
Keyword(s):  
Quantum Dynamics ◽  
Laser Pulses ◽  
Trapped Ion

scholarly journals Quantum dynamics of an atomic double-well system interacting with a trapped ion

2014 ◽  
Vol 89 (6) ◽  
Author(s):  
J. Joger ◽  
A. Negretti ◽  
R. Gerritsma
Keyword(s):  
Quantum Dynamics ◽  
Trapped Ion
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