Observation of unconventional many-body scarring in a quantum simulator

@inproceedings{Su2022ObservationOU,
  title={Observation of unconventional many-body scarring in a quantum simulator},
  author={G. Su and Hui Sun and Ana Hudomal and Jean-Yves Desaules and Zhao-Yu Zhou and Bingda Yang and Jad C. Halimeh and Zhen-Sheng Yuan and Zlatko Papi'c and Jian-Wei Pan},
  year={2022}
}
The ongoing quest for understanding nonequilibrium dynamics of complex quantum systems underpins the foundation of statistical physics as well as the development of quantum technology. Quantum many-body scarring has recently opened a window into novel mechanisms for delaying the onset of thermalization, however its experimental realization remains limited to the $\mathbb{Z}_2$ state in a Rydberg atom system. Here we realize unconventional many-body scarring in a Bose--Hubbard quantum… 
View PDF on arXiv
8 Citations
Background Citations
2
Methods Citations
1
Results Citations
2

Figures from this paper

8 Citations

Robust quantum many-body scars in lattice gauge theories
Quantum many-body scarring is a paradigm of weak ergodicity breaking arising due to the presence of special nonthermal many-body eigenstates that possess low entanglement entropy, are equally spaced…
Driving quantum many-body scars
Periodic driving has been established as a powerful technique for engineering novel phases of matter and intrinsically out-of-equilibrium phenomena such as time crystals. Recent work by Bluvstein et…
Prominent quantum many-body scars in a truncated Schwinger model
The high level of control and precision achievable in current synthetic quantum matter setups has enabled first attempts at quantum-simulating various intriguing phenomena in condensed matter physics,…
Quantum Many-Body Scars: A Quasiparticle Perspective
Weakly interacting quasiparticles play a central role in the low-energy description of many phases of quantum matter. At higher energies, however, quasiparticles cease to be well-defined in generic…
Weak Ergodicity Breaking in the Schwinger Model
As a paradigm of weak ergodicity breaking in disorder-free nonintegrable models, quantum many-body scars (QMBS) can offer deep insights into the thermalization dynamics of gauge theories. Having been…
Tuning the Topological θ -Angle in Cold-Atom Quantum Simulators of Gauge Theories
(Dated: The topological θ -angle in gauge theories engenders a series of fundamental phenomena, including violations of charge-parity (CP) symmetry, dynamical topological transitions, and confinement–…
Tuning the Topological $\theta$-Angle in Cold-Atom Quantum Simulators of Gauge Theories
Jad C. Halimeh, 2, ∗ Ian P. McCulloch, Bing Yang, and Philipp Hauke 6, † Department of Physics and Arnold Sommerfeld Center for Theoretical Physics (ASC), Ludwig-Maximilians-Universität München,…
Scar States in Deconfined $\mathbb{Z}_2$ Lattice Gauge Theories
Adith Sai Aramthottil,1 Utso Bhattacharya,2 Daniel González-Cuadra,2, 3, 4 Maciej Lewenstein,2, 5 Luca Barbiero,6, 7 and Jakub Zakrzewski1, 8 Instytut Fizyki Teoretycznej, Uniwersytet Jagielloński,…

References

SHOWING 1-4 OF 4 REFERENCES
Quantum many-body scars have extensive multipartite entanglement
Recent experimental observation of weak ergodicity breaking in Rydberg atom quantum simulators has sparked interest in quantum many-body scars – eigenstates which evade thermalisation at finite…
Quantum many-body scars and quantum criticality
In this letter, we study the PXP Hamiltonian with an external magnetic field that exhibits both quantum scar states and quantum criticality. It is known that this model hosts a series of quantum…
Phases and dynamics of ultracold bosons in a tilted optical lattice
We present a brief overview of the phases and dynamics of ultracold bosons in an optical lattice in the presence of a tilt. We begin with a brief summary of the possible experimental setup for…
Catching Bethe phantoms and quantum many-body scars: Long-lived spin-helix states in Heisenberg magnets
Paul Niklas Jepsen,1, 2, 3 Yoo Kyung Lee,1, 2, 3 Hanzhen Lin,1, 2, 3 Ivana Dimitrova,3, 4 Yair Margalit,1, 2, 3 Wen Wei Ho,4, 5 and Wolfgang Ketterle1, 2, 3 Department of Physics, Massachusetts…