Strongly Correlated Quantum Gas Prepared by Direct Laser Cooling

Solano, Pablo; Duan, Yiheng; Chen, Yuting; Rudelis, Alyssa; Chin, Cheng; Vuletić, Vladan

doi:10.1103/physrevlett.123.173401

Cited by 22 publications

(14 citation statements)

References 49 publications

(92 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This phe-nomenon, which is a consequence of integrability, is called a "quantum holonomy" [11]. In an intermediate stage of this cycle, the system forms an attractively interacting, metastable "super-Tonks-Girardeau" gas (sTG), in which the bosons are even more strongly anticorrelated than free fermions [12][13][14][15][16][17]. As one quenches deeper into the sTG regime by making the interactions less strongly attractive, one expects the sTG to become unstable; this is indeed seen in gases with purely shortrange interactions [15].…”

mentioning

confidence: 99%

Creating quantum many-body scars through topological pumping of a 1D dipolar gas

Kao,

Li,

Lin

et al. 2020

Preprint

View full text Add to dashboard Cite

Quantum many-body scars, long-lived excited states of correlated quantum chaotic systems that evade thermalization, are of great fundamental and technological interest. We create novel scar states in a bosonic 1D quantum gas of dysprosium by stabilizing a super-Tonks-Girardeau gas against collapse and thermalization with repulsive long-range dipolar interactions. Stiffness and energy density measurements show that the system is dynamically stable regardless of contact interaction strength. This enables us to cycle contact interactions from weakly to strongly repulsive, then strongly attractive, and finally weakly attractive. We show that this cycle is an energy-space topological pump (due to a quantum holonomy). Iterating this cycle offers an unexplored topological pumping method to create a hierarchy of quantum many-body scar states.

show abstract

mentioning

confidence: 99%

Creating quantum many-body scars through topological pumping of a 1D dipolar gas

Kao,

Li,

Lin

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…The fast transport setup demonstrated here enables short cycle times, which will be beneficial for improved statistics in future experiments. The cycle time could be reduced further by implementing additional all-optical cooling techniques [26][27][28] to reduce the loading and evaporation times in the dipole traps. Our design further facilitates large optical access, enabling the installation of high-NA objectives for singleatom single-site resolved imaging and manipulation of cold 133 Cs atoms in optical lattices [48][49][50][51][52][53][54][55][56].…”

Section: Discussionmentioning

confidence: 99%

“…However, this usually comes at the expense of increased experimental complexity and longer cycle times. On the other hand reaching faster cycle times [22][23][24][25][26][27][28][29] and developing compact and robust experimental setups [30] is essential for the development of the next generation of quantum devices [31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

Fast long-distance transport of cold cesium atoms

Klostermann,

Cabrera,

von Raven

et al. 2021

Preprint

View full text Add to dashboard Cite

Transporting cold atoms between distant sections of a vacuum system is a central ingredient in many quantum simulation experiments, in particular in setups, where a large optical access and precise control over magnetic fields is needed. In this work, we demonstrate optical transport of cold cesium atoms over a total transfer distance of about 43 cm in less than 30 ms. The high speed is facilitated by a moving lattice, which is generated via the interference of a Bessel and a Gaussian laser beam. We transport about 3 × 10 6 atoms at a temperature of a few µK with a transport efficiency of about 75 %. We provide a detailed study of the transport efficiency for different accelerations and lattice depths and find that the transport efficiency is mainly limited by the potential depth along the direction of gravity. To highlight the suitability of the optical-transport setup for quantum simulation experiments, we demonstrate the generation of a pure Bose-Einstein condensate with about 2 × 10 4 atoms. We find a robust final atom number within 2% over a duration of 2.5 h with a standard deviation of < 5% between individual experimental realizations.

show abstract

“…Local observables and correlations thereof are measured in great detail thanks to in situ manipulations [5][6][7][8]. As one of the main protagonists in this play the Bose gas with contact interactions, also known as the Lieb-Liniger model (LL) [9][10][11], stands out since it naturally emerges when a bosonic gas is confined to an elongated trap [1,[12][13][14][15][16][17][18][19][20][21][22][23][24]. The LL model belongs to the class of integrable, or exactly solvable, systems [25,26] which possess an extensive number of local conserved quantities: This has far-reaching consequences, such as hindering of thermalization [27,28] and ballistic transport [29].…”

Section: Introductionmentioning

confidence: 99%

Adiabatic formation of bound states in the one-dimensional Bose gas

2021

View full text Add to dashboard Cite

We consider the one-dimensional interacting Bose gas in the presence of time-dependent and spatially inhomogeneous contact interactions. Within its attractive phase, the gas allows for bound states of an arbitrary number of particles, which are eventually populated if the system is dynamically driven from the repulsive to the attractive regime. Building on the framework of generalized hydrodynamics, we analytically determine the formation of bound states in the limit of adiabatic changes in the interactions. Our results are valid for arbitrary initial thermal states and, more generally, generalized Gibbs ensembles.

show abstract

Strongly Correlated Quantum Gas Prepared by Direct Laser Cooling

Cited by 22 publications

References 49 publications

Creating quantum many-body scars through topological pumping of a 1D dipolar gas

Creating quantum many-body scars through topological pumping of a 1D dipolar gas

Fast long-distance transport of cold cesium atoms

Adiabatic formation of bound states in the one-dimensional Bose gas

Contact Info

Product

Resources

About