• Corpus ID: 211296772

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

@article{Kao2020CreatingQM,
  title={Creating quantum many-body scars through topological pumping of a 1D dipolar gas},
  author={Wil Kao and Kuan-Yu Li and Kuan-yu Lin and Sarang Gopalakrishnan and Benjamin L. Lev},
  journal={arXiv: Quantum Gases},
  year={2020}
}
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… 

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References

SHOWING 1-10 OF 79 REFERENCES
Collective excitations of trapped one-dimensional dipolar quantum gases
We calculate the excitation modes of a 1D dipolar quantum gas confined in a harmonic trap with frequency $\omega_0$ and predict how the frequency of the breathing n=2 mode characterizes the
Weak ergodicity breaking from quantum many-body scars
The thermodynamic description of many-particle systems rests on the assumption of ergodicity, the ability of a system to explore all allowed configurations in the phase space. Recent studies on
Realization of an Excited, Strongly Correlated Quantum Gas Phase
TLDR
A technique in which confinement of the atoms to low dimensions, using a confinement-induced resonance, can stabilize excited states with tunable interactions, opening up the experimental study of metastable, excited, many-body phases with strong correlations and their dynamical properties.
Exciting collective oscillations in a trapped 1D gas.
TLDR
The realization of a trapped one-dimensional Bose gas and its characterization by means of measuring its lowest lying collective excitations is reported, and the transition between the two regimes is studied.
Quasi-one-dimensional dipolar quantum gases
In this paper we consider dipolar quantum gases in a quasi-one-dimensional tube with dipole moment perpendicular to the tube direction. We deduce the effective one-dimensional interaction potential
Evidence of Luttinger-liquid behavior in one-dimensional dipolar quantum gases
A strongly correlated Luttinger-liquid behavior is found to emerge well beyond the Tonks-Girardeau (TG) regime in a one-dimensional Bose gas with dipolar repulsions at $T=0$, persisting for a wide
Probing many-body dynamics on a 51-atom quantum simulator
TLDR
This work demonstrates a method for creating controlled many-body quantum matter that combines deterministically prepared, reconfigurable arrays of individually trapped cold atoms with strong, coherent interactions enabled by excitation to Rydberg states, and realizes a programmable Ising-type quantum spin model with tunable interactions and system sizes of up to 51 qubits.
Thermalization in a quasi-one-dimensional ultracold bosonic gas
We study the collisional processes that can lead to thermalization in one-dimensional (1D) systems. For two-body collisions, excitations of transverse modes are the prerequisite for energy exchange
Tonks–Girardeau gas of ultracold atoms in an optical lattice
TLDR
A theoretical prediction of the momentum distribution is made based on an approach in which trapped bosons acquire fermionic properties, finding that it agrees closely with the measured distribution.
Super-Tonks-Girardeau state in an attractive one-dimensional dipolar gas.
TLDR
The ground state of a one-dimensional (1D) quantum gas of dipoles oriented perpendicular to the longitudinal axis, with a strong 1/x(3) repulsive potential, is studied and it is shown that for small values of nd(2), this state is metastable and is an analog of the super Tonks-Girardeau state of bosons with aStrong zero-range attraction.
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