Investigating entropic dynamics of multiqubit cavity QED system
- URL: http://arxiv.org/abs/2405.05696v3
- Date: Mon, 9 Sep 2024 13:16:21 GMT
- Title: Investigating entropic dynamics of multiqubit cavity QED system
- Authors: Hui-hui Miao,
- Abstract summary: Entropic dynamics of a multiqubit cavity quantum electrodynamics system is simulated and various aspects of entropy are explored.
In the modified version of the Tavis-Cummings-Hubbard model, atoms are held in optical cavities through optical tweezers.
The interaction of atom with the cavity results in different electronic transitions and the creation and annihilation of corresponding types of photon.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Entropic dynamics of a multiqubit cavity quantum electrodynamics system is simulated and various aspects of entropy are explored. In the modified version of the Tavis-Cummings-Hubbard model, atoms are held in optical cavities through optical tweezers and can jump between different cavities through the tunneling effect. The interaction of atom with the cavity results in different electronic transitions and the creation and annihilation of corresponding types of photon. Electron spin and the Pauli exclusion principle are considered. Formation and break of covalent bond and creation and annihilation of phonon are also introduced into the model. The system is bipartite. The effect of all kinds of interactions on entropy is studied. And the von Neumann entropy of different subsystems is compared. The results show that the entropic dynamics can be controlled by selectively choosing system parameters, and the entropy values of different subsystems satisfy certain inequality relationships.
Related papers
- Phase and amplitude modes in the anisotropic Dicke model with matter interactions [0.0]
Phase and amplitude modes are emergent phenomena that manifest across diverse physical systems.
We study their behavior in an anisotropic Dicke model that includes collective matter interactions.
We unveil novel phenomena due to the unique critical features provided by the interplay between the anisotropy and matter interactions.
arXiv Detail & Related papers (2024-06-12T01:29:25Z) - Dynamics of a Generalized Dicke Model for Spin-1 Atoms [0.0]
The Dicke model is a staple of theoretical cavity Quantum Electrodynamics (cavity QED)
It demonstrates a rich variety of dynamics such as phase transitions, phase multistability, and chaos.
The varied and complex behaviours admitted by the model highlights the need to more rigorously map its dynamics.
arXiv Detail & Related papers (2024-03-04T04:09:35Z) - Wave-packet and entanglement dynamics in a non-Hermitian many-body
system [0.0]
A one-dimensional quantum system described by a non-Hermitian Hamiltonian of the so-called Hatano-Nelson type is studied.
Effects of disorder and inter-particle interaction, especially, when they coexist, may be less understood.
arXiv Detail & Related papers (2022-12-02T06:47:18Z) - Trapped-Ion Quantum Simulation of Collective Neutrino Oscillations [55.41644538483948]
We study strategies to simulate the coherent collective oscillations of a system of N neutrinos in the two-flavor approximation using quantum computation.
We find that the gate complexity using second order Trotter- Suzuki formulae scales better with system size than with other decomposition methods such as Quantum Signal Processing.
arXiv Detail & Related papers (2022-07-07T09:39:40Z) - Formation of robust bound states of interacting microwave photons [148.37607455646454]
One of the hallmarks of interacting systems is the formation of multi-particle bound states.
We develop a high fidelity parameterizable fSim gate that implements the periodic quantum circuit of the spin-1/2 XXZ model.
By placing microwave photons in adjacent qubit sites, we study the propagation of these excitations and observe their bound nature for up to 5 photons.
arXiv Detail & Related papers (2022-06-10T17:52:29Z) - Stochastic Variational Approach to Small Atoms and Molecules Coupled to
Quantum Field Modes [55.41644538483948]
We present a variational calculation (SVM) of energies and wave functions of few particle systems coupled to quantum fields in cavity QED.
Examples for a two-dimensional trion and confined electrons as well as for the He atom and the Hydrogen molecule are presented.
arXiv Detail & Related papers (2021-08-25T13:40:42Z) - Sensing quantum chaos through the non-unitary geometric phase [62.997667081978825]
We propose a decoherent mechanism for sensing quantum chaos.
The chaotic nature of a many-body quantum system is sensed by studying the implications that the system produces in the long-time dynamics of a probe coupled to it.
arXiv Detail & Related papers (2021-04-13T17:24:08Z) - Evolution of a Non-Hermitian Quantum Single-Molecule Junction at
Constant Temperature [62.997667081978825]
We present a theory for describing non-Hermitian quantum systems embedded in constant-temperature environments.
We find that the combined action of probability losses and thermal fluctuations assists quantum transport through the molecular junction.
arXiv Detail & Related papers (2021-01-21T14:33:34Z) - Bloch-Landau-Zener dynamics induced by a synthetic field in a photonic
quantum walk [52.77024349608834]
We realize a photonic quantum walk in the presence of a synthetic gauge field.
We investigate intriguing system dynamics characterized by the interplay between Bloch oscillations and Landau-Zener transitions.
arXiv Detail & Related papers (2020-11-11T16:35:41Z) - Entropy Dynamics of Phonon Quantum States Generated by Optical
Excitation of a Two-Level System [0.0]
In quantum physics, two prototypical model systems stand out due to their wide range of applications.
We consider different optical excitations and decay scenarios of a two-level system (TLS)
Special emphasis is placed on the entropy of the different parts of the system, predominantly the phonons.
arXiv Detail & Related papers (2020-03-03T12:07:58Z) - Exploring dynamical phase transitions with cold atoms in an optical
cavity [0.0]
We use an ensemble of about a million strontium-88 atoms in an optical cavity to simulate a collective Lipkin-Meshkov-Glick model.
Our system allows us to probe the dependence of dynamical phase transitions on system size, initial state and other parameters.
arXiv Detail & Related papers (2019-10-01T14:25:45Z)
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.