Results 21 to 30 of about 1,714,467 (147)

Equivalence of Dissipative and Dissipationless Dynamics of Interacting Quantum Systems With Its Application to the Unitary Fermi Gas

Frontiers in Physics, 2021
We analytically study quantum dissipative dynamics described by the Caldirola-Kanai model with inter-particle interactions. We have found that the dissipative quantum dynamics of the Caldirola-Kanai model can be exactly mapped to a dissipationless ...
Masaaki Tokieda, Masaaki Tokieda, Shimpei Endo, Shimpei Endo   +3 more
doaj   +1 more source

Cavity QED with Multilevel Atoms [PDF]

, 2005
The steady-state transmission spectrum of a cavity with two modes of orthogonal polarization strongly coupled to a single atom with multiple Zeeman states is computed. Effects due to cavity birefringence and atomic ac-Stark shifts are included.
Birnbaum, Kevin Michael
core   +1 more source

Quantum spin transistor with a Heisenberg spin chain

Nature Communications, 2016
Systems of interacting quantum spins provide a basis for quantum computation devices. Here, the authors demonstrate a quantum spin transistor in a Heisenberg spin chain, which may be realized in a system of trapped cold atoms.
O. V. Marchukov, A. G. Volosniev, M. Valiente, D. Petrosyan, N. T. Zinner   +4 more
doaj   +1 more source

Injected coherence and phase control in the tunneling of ultra slow three-level atoms

Ain Shams Engineering Journal, 2023
Our research aims to investigate the impact of injecting atomic coherence on the phase tunneling time of ultra slow cascade three-level atoms traversing through high-quality cavities.
Fazal Badshah, Yuan Zhou, Zeyun Shi, Zia Ullah, Xin-Ke Li, Muqaddar Abbas, Qing He, Haibo Huang   +7 more
doaj   +1 more source

Hydrogen transfer reaction: Bond formation and bond cleavage through the eyes of interacting quantum atoms [PDF]

Journal of the Serbian Chemical Society, 2019
Hydrogen transfer from hydroquinone to the methoxy radical was studied using the density functional theory. The energy decomposition technique, interacting quantum atoms, was employed for a detailed investigation of the changes that the bonds of interest
Milovanović Branislav Ž., Etinski Mihajlo R., Petković Milena M.   +2 more
doaj   +1 more source

Entanglement, Upper Probabilities and Decoherence in Quantum Mechanics [PDF]

, 2009
Computation of decay time for entangled quantum systems is an important aspect of decoherence theories. Here we explore this topic from the standpoint of computing the decay time to the existence of a joint probability distribution of the entangled ...
Patrick Suppes, Suppes, Patrick, Suppes, P., Hartmann, Stephan, Hartmann, S., Stephan Hartmann   +5 more
core   +1 more source

Rabi oscillations and entanglement between two atoms interacting by the Rydberg blockade studied by the Jaynes–Cummings Model

Physics Open
The interaction between atoms and a quantized radiation field is fundamentally important in quantum optics and quantum information science. Due to their unusual properties, Rydberg atoms are promising building blocks for two-qubit gates and atom-light ...
Francisco D. Santillan, Andreas Hanke
doaj   +1 more source

Method of canonical transformations in the theory of quantum gases interacting with radiation

Condensed Matter Physics
 An approach to the theoretical study of effects and phenomena in quantum gases interacting with radiation is proposed. The approach is based on a modification of the canonical transformation method, which was once used to diagonalize Hamiltonians ...
M. S. Bulakhov, A. S. Peletminskii, P. P. Kostrobij, I. A. Ryzha, Yu. V. Slyusarenko   +4 more
doaj   +1 more source

Quantum-optical magnets with competing short- and long-range interactions: Rydberg-dressed spin lattice in an optical cavity

SciPost Physics, 2016
The fields of quantum simulation with cold atoms [1] and quantum optics [2] are currently being merged. In a set of recent pathbreaking experiments with atoms in optical cavities [3,4] lattice quantum many-body systems with both, a short-range ...
Jan Gelhausen, Michael Buchhold, Achim Rosch, Philipp Strack
doaj   +1 more source

Strongly correlated Fermions strongly coupled to light

Nature Communications, 2020
Atom-photon interaction and their coupling are important to understand correlated and quantum matter. Here the authors show strong coupling between degenerate interacting Fermi gas of 6Li atoms and photons.
Kevin Roux, Hideki Konishi, Victor Helson, Jean-Philippe Brantut   +3 more
doaj   +1 more source