Rapidity and momentum distributions of 1D dipolar quantum gases
- URL: http://arxiv.org/abs/2211.09118v2
- Date: Thu, 29 Jun 2023 13:03:13 GMT
- Title: Rapidity and momentum distributions of 1D dipolar quantum gases
- Authors: Kuan-Yu Li, Yicheng Zhang, Kangning Yang, Kuan-Yu Lin, Sarang
Gopalakrishnan, Marcos Rigol, and Benjamin L. Lev
- Abstract summary: We show that rapidity and momentum distributions are nearly unaffected by the dipolar interactions.
We also observe that significant changes of these distributions occur when decreasing the strength of the contact interactions.
- Score: 4.308470505441047
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We explore the effect of tunable integrability breaking dipole-dipole
interactions in the equilibrium states of highly magnetic 1D Bose gases of
dysprosium at low temperatures. We experimentally observe that in the strongly
correlated Tonks-Girardeau regime, rapidity and momentum distributions are
nearly unaffected by the dipolar interactions. By contrast, we also observe
that significant changes of these distributions occur when decreasing the
strength of the contact interactions. We show that the main experimental
observations are captured by modeling the system as an array of 1D gases with
only contact interactions, dressed by the contribution of the short-range part
of the dipolar interactions. Improvements to theory-experiment correspondence
will require new tools tailored to near-integrable models possessing both short
and long-range interactions.
Related papers
- Unbounded entropy production and violent fragmentation in long-range interacting super-Tonks-Girardeau systems [0.0]
We study the non-equilibrium dynamics of a one-dimensional Bose gas with long-range interactions that decay as $(frac1ralpha)$ $(0.5 alpha 4.0$)
We find that relaxation is achieved through a complex intermediate dynamics demonstrated by violent fragmentation and chaotic delocalization.
Our study showcases the complex relaxation behavior of tunable long-range interacting systems that could be engineered in state-of-the-art experiments.
arXiv Detail & Related papers (2024-05-23T18:00:00Z) - Directional superradiance in a driven ultracold atomic gas in free-space [0.0]
We study a dense ensemble illuminated by a strong coherent drive while interacting via dipole-dipole interactions.
Although the steady-state features some similarities to the reported superradiant to normal non-induced transition, we observe significant qualitative and quantitative differences.
We develop a simple theoretical model that explains the scaling properties by accounting for interaction-equilibrium inhomogeneous effects and spontaneous emission.
arXiv Detail & Related papers (2024-03-22T18:14:44Z) - Super-Tonks-Girardeau quench of dipolar bosons in a one-dimensional
optical lattice [0.0]
We simulate a super-Tonks-Girardeau quench on dipolar bosons in a one-dimensional optical lattice.
By calculating particle density, correlations, entropy measures, and natural occupations, we establish the regimes of stability as a function of dipolar interaction strength.
Our study highlights the potential of long-range interactions to explore new mechanisms to steer and stabilize excited quantum states of matter.
arXiv Detail & Related papers (2024-01-18T19:00:00Z) - Nonlocal thermoelectric detection of interaction and correlations in
edge states [62.997667081978825]
We propose the nonlocal thermoelectric response as a direct indicator of the presence of interactions, nonthermal states and the effect of correlations.
A setup with two controllable quantum point contacts allows thermoelectricity to monitor the interacting system thermalisation.
arXiv Detail & Related papers (2023-07-18T16:28:59Z) - 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) - Quantum Monte Carlo study of the role of p-wave interactions in
ultracold repulsive Fermi gases [0.0]
We investigate the ground-state properties of single-component Fermi gases with short-range repulsive interactions.
A comparison against recently derived second-order perturbative results shows good agreement in a broad range of interaction strength.
We find remarkable agreement with a recently derived fourth-order expansion that includes $p$-wave contributions.
arXiv Detail & Related papers (2022-12-18T20:08:32Z) - Probing dynamics of a two-dimensional dipolar spin ensemble using single
qubit sensor [62.997667081978825]
We experimentally investigate individual spin dynamics in a two-dimensional ensemble of electron spins on the surface of a diamond crystal.
We show that this anomalously slow relaxation rate is due to the presence of strong dynamical disorder.
Our work paves the way towards microscopic study and control of quantum thermalization in strongly interacting disordered spin ensembles.
arXiv Detail & Related papers (2022-07-21T18:00:17Z) - 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) - 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) - Chemical tuning of spin clock transitions in molecular monomers based on
nuclear spin-free Ni(II) [52.259804540075514]
We report the existence of a sizeable quantum tunnelling splitting between the two lowest electronic spin levels of mononuclear Ni complexes.
The level anti-crossing, or magnetic clock transition, associated with this gap has been directly monitored by heat capacity experiments.
The comparison of these results with those obtained for a Co derivative, for which tunnelling is forbidden by symmetry, shows that the clock transition leads to an effective suppression of intermolecular spin-spin interactions.
arXiv Detail & Related papers (2021-03-04T13:31:40Z) - Optically pumped spin polarization as a probe of many-body
thermalization [50.591267188664666]
We study the spin diffusion dynamics of 13C in diamond, which we dynamically polarize at room temperature via optical spin pumping of engineered color centers.
We find good thermal contact throughout the nuclear spin bath, virtually independent of the hyperfine coupling strength.
Our results open intriguing opportunities to study the onset of thermalization in a system by controlling the internal interactions within the bath.
arXiv Detail & Related papers (2020-05-01T23:16:33Z)
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.