Anisotropy-induced Coulomb phase and quasiparticle zoo in the atomic
monopole-spin hybrid system
- URL: http://arxiv.org/abs/2311.14277v1
- Date: Fri, 24 Nov 2023 04:41:38 GMT
- Title: Anisotropy-induced Coulomb phase and quasiparticle zoo in the atomic
monopole-spin hybrid system
- Authors: Shao-Jun Li, Xiang Gao, Xue-Ting Fang, Lushuai Cao, Peter Schmelcher,
and Zhong-Kun Hu
- Abstract summary: Quantum simulation of a monopole-spin hybrid system is performed on basis of a dipolar ultracold gas in a ladder lattice.
The hopping of the atoms induces a particle conversion process between spin and monopole pairs.
- Score: 5.425449284115749
- License: http://creativecommons.org/licenses/by-sa/4.0/
- Abstract: Quantum simulation of a monopole-spin hybrid system is performed on basis of
a dipolar ultracold gas in a ladder lattice. The site-occupation states of the
dipolar ladder lattice gas can spontaneously emulate both the monopole and spin
excitations. The hopping of the atoms induces a particle conversion process
between spin and monopole pairs, and the dipole-dipole interaction determines
the spin-spin, spin-monopole and monopole-monopole interactions. The
anisotropic nature of the dipole-dipole interaction allows hereby for a
flexible engineering of the designed hybrid system, and for a significant
tunability of the interaction strengths. As a result, we encounter a rich phase
diagram, and specifically a self-assembled Coulomb phase arises, in which
monopoles and spins coexist and are orderly arranged according to the local
Gauss's law. The Coulomb phase hosts a zoo of different types of
quasiparticles, and provides the possibility to simulate various phenomena in
particle physics, such as a degenerate vacuum, particle decay and conversion
processes. Our work provides a significant extension of the scope of quantum
simulations based on the anisotropy of dipolar interactions.
Related papers
- Fermi polaron in atom-ion hybrid systems [0.0]
We investigate the ionic Fermi polaron consisting of a charged impurity interacting with a polarized Fermi bath.
We find a smooth polaron-molecule transition for strong coupling, in contrast with the neutral case, where the transition smoothens only for finite temperature and finite impurity density.
This study may provide valuable insights into alternative solid-state systems such as Fermi excitons polarons in atomically thin semiconductors.
arXiv Detail & Related papers (2024-01-10T18:45:02Z) - Dissipationless flow in a Bose-Fermi mixture [50.591267188664666]
We study the collective oscillations of a spin-polarized Fermi gas immersed in a Bose-Einstein condensate.
Our findings open the door towards understanding non-equilibrium dynamics of strongly interacting Bose-Fermi mixtures.
arXiv Detail & Related papers (2023-04-16T00:58:05Z) - Quantum Phases from Competing Van der Waals and Dipole-Dipole
Interactions of Rydberg Atoms [0.0]
Competing short- and long-range interactions represent distinguished ingredients for the formation of complex quantum many-body phases.
We leverage the van der Waals and dipole-dipole interactions of the Rydberg atoms to obtain the zero-temperature phase diagram for a uniform chain and a dimer model.
This demonstrates the versatility of the Rydberg platform in studying physics involving short- and long-ranged interactions simultaneously.
arXiv Detail & Related papers (2023-03-30T15:45:06Z) - Momentum-selective pair creation of spin excitations in dipolar bilayers [0.0]
We study the temporal growth and spatial propagation of quantum correlations in a two-dimensional bilayer realising a spin-1/2 quantum XXZ model with couplings mediated by long-range and anisotropic dipolar interactions.
The predicted behavior remains observable at very low filling fractions, making it accessible in state-of-the-art experiments with Rydberg atoms, magnetic atoms, and polar molecule arrays.
arXiv Detail & Related papers (2023-02-17T18:50:13Z) - Spin-spin coupling-based quantum and classical phase transitions in
two-impurity spin-boson models [55.41644538483948]
Two-interacting-impurity spin-boson models with vanishing transverse fields on the spin-pair are studied.
The dynamics of the magnetization is analysed for different levels of (an)isotropy.
arXiv Detail & Related papers (2022-05-19T08:01:03Z) - Tuning long-range fermion-mediated interactions in cold-atom quantum
simulators [68.8204255655161]
Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior.
Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
arXiv Detail & Related papers (2022-03-31T13:32:12Z) - Accessing the topological Mott insulator in cold atom quantum simulators
with realistic Rydberg dressing [58.720142291102135]
We investigate a realistic scenario for the quantum simulation of such systems using cold Rydberg-dressed atoms in optical lattices.
We perform a detailed analysis of the phase diagram at half- and incommensurate fillings, in the mean-field approximation.
We furthermore study the stability of the phases with respect to temperature within the mean-field approximation.
arXiv Detail & Related papers (2022-03-28T14:55:28Z) - Anisotropic electron-nuclear interactions in a rotating quantum spin
bath [55.41644538483948]
Spin-bath interactions are strongly anisotropic, and rapid physical rotation has long been used in solid-state nuclear magnetic resonance.
We show that the interaction between electron spins of nitrogen-vacancy centers and a bath of $13$C nuclear spins introduces decoherence into the system.
Our findings offer new insights into the use of physical rotation for quantum control with implications for quantum systems having motional and rotational degrees of freedom that are not fixed.
arXiv Detail & Related papers (2021-05-16T06:15:00Z) - Molecular Interactions Induced by a Static Electric Field in Quantum
Mechanics and Quantum Electrodynamics [68.98428372162448]
We study the interaction between two neutral atoms or molecules subject to a uniform static electric field.
Our focus is to understand the interplay between leading contributions to field-induced electrostatics/polarization and dispersion interactions.
arXiv Detail & Related papers (2021-03-30T14:45:30Z) - Quantum phase transitions of tri-layer excitons in atomically thin
heterostructures [0.0]
We find quantum phase transitions between a repulsive quadrupole lattice phase and a staggered (anti-parallel) dipolar lattice phase.
Remarkably, the intrinsic nature of each interlayer exciton is completely different in each phase.
This is a striking example for the possible rich quantum physics in a system where the single particle properties and the many-body state are dynamically coupled through the particle interactions.
arXiv Detail & Related papers (2020-04-14T17:41:29Z)
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.