Quantum Simulation of an Extended Dicke Model with a Magnetic Solid
- URL: http://arxiv.org/abs/2302.06028v2
- Date: Wed, 24 Jan 2024 23:20:45 GMT
- Title: Quantum Simulation of an Extended Dicke Model with a Magnetic Solid
- Authors: Nicolas Marquez Peraca, Xinwei Li, Jaime M. Moya, Kenji Hayashida,
Dasom Kim, Xiaoxuan Ma, Kelly J. Neubauer, Diego Fallas Padilla, Chien-Lung
Huang, Pengcheng Dai, Andriy H. Nevidomskyy, Han Pu, Emilia Morosan, Shixun
Cao, Motoaki Bamba, and Junichiro Kono
- Abstract summary: We show the existence of a novel atomically ordered phase in addition to the superradiant and normal phases.
These results lay the foundation for studying multiatomic quantum optics models using well-characterized many-body condensed matter systems.
- Score: 3.152441795183668
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The Dicke model describes the cooperative interaction of an ensemble of
two-level atoms with a single-mode photonic field and exhibits a quantum phase
transition as a function of light--matter coupling strength. Extending this
model by incorporating short-range atom--atom interactions makes the problem
intractable but is expected to produce new phases. Here, we simulate such an
extended Dicke model using a crystal of ErFeO$_3$, where the role of atoms
(photons) is played by Er$^{3+}$ spins (Fe$^{3+}$ magnons). Through
magnetocaloric effect and terahertz magnetospectroscopy measurements, we
demonstrated the existence of a novel atomically ordered phase in addition to
the superradiant and normal phases that are expected from the standard Dicke
model. Further, we elucidated the nature of the phase boundaries in the
temperature--magnetic-field phase diagram, identifying both first-order and
second-order phase transitions. These results lay the foundation for studying
multiatomic quantum optics models using well-characterized many-body condensed
matter systems.
Related papers
- Quantum Phase Transitions in Many-Dipole Light-Matter Systems [0.499320937849508]
A potential phase transition between a normal ground state and a photon-condensed ground state in many-dipole light-matter systems is a topic of considerable controversy.
We show that a ferroelectric phase transition can (in principle) still occur and the description of the abnormal phase beyond the critical point requires the inclusion of nonlinear terms in the Holstein-Primakoff mapping.
arXiv Detail & Related papers (2024-05-17T11:38:51Z) - 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) - Quantum Phase Transitions in a Generalized Dicke Model [2.723809629055624]
We investigate a generalized Dicke model by introducing two interacting spin ensembles coupled with a single-mode bosonic field.
Ferromagnetic spin-spin interaction can significantly reduce the required spin-boson coupling strength to observe the superradiant phase.
To examine higher-order quantum effects beyond the mean-field contribution, we utilize the Holstein-Primakoff transformation.
arXiv Detail & Related papers (2023-10-29T11:00:56Z) - Higher-order topological Peierls insulator in a two-dimensional
atom-cavity system [58.720142291102135]
We show how photon-mediated interactions give rise to a plaquette-ordered bond pattern in the atomic ground state.
The pattern opens a non-trivial topological gap in 2D, resulting in a higher-order topological phase hosting corner states.
Our work shows how atomic quantum simulators can be harnessed to investigate novel strongly-correlated topological phenomena.
arXiv Detail & Related papers (2023-05-05T10:25:14Z) - Photoinduced prethermal order parameter dynamics in the two-dimensional
large-$N$ Hubbard-Heisenberg model [77.34726150561087]
We study the microscopic dynamics of competing ordered phases in a two-dimensional correlated electron model.
We simulate the light-induced transition between two competing phases.
arXiv Detail & Related papers (2022-05-13T13:13:31Z) - Quantum phase transition of the two-dimensional Rydberg atom array in an
optical cavity [5.551635299693738]
We study the two-dimensional Rydberg atom array in an optical cavity with help of the meanfield theory and the large-scale quantum Monte Carlo simulations.
The interplay between them provides a rich quantum phase diagram including the Mott, solid-1/2, superradiant and superradiant solid phases.
arXiv Detail & Related papers (2022-04-19T10:49:57Z) - Tricritical point in the quantum Hamiltonian mean-field model [0.0]
We propose a generalization of the classical Hamiltonian mean-field model to fermionic particles.
We study the phase diagram and thermodynamic properties of the model in the canonical ensemble for ferromagnetic interactions.
Our results offer an intriguing example of tricriticality in a quantum system with long-range couplings.
arXiv Detail & Related papers (2022-02-17T19:01:14Z) - 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) - Qubit-photon bound states in topological waveguides with long-range
hoppings [62.997667081978825]
Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states.
We study the features of the qubit-photon bound states when the emitters couple to the bulk modes in the different phases.
We consider the coupling of emitters to the edge modes appearing in the different topological phases.
arXiv Detail & Related papers (2021-05-26T10:57:21Z) - Superradiant phase transition in complex networks [62.997667081978825]
We consider a superradiant phase transition problem for the Dicke-Ising model.
We examine regular, random, and scale-free network structures.
arXiv Detail & Related papers (2020-12-05T17:40:53Z) - Photon Condensation and Enhanced Magnetism in Cavity QED [68.8204255655161]
A system of magnetic molecules coupled to microwave cavities undergoes the equilibrium superradiant phase transition.
The effect of the coupling is first illustrated by the vacuum-induced ferromagnetic order in a quantum Ising model.
A transmission experiment is shown to resolve the transition, measuring the quantum electrodynamical control of magnetism.
arXiv Detail & Related papers (2020-11-07T11:18:24Z)
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.