Details
| Original language | English |
|---|---|
| Article number | 033306 |
| Number of pages | 8 |
| Journal | Physical Review Research |
| Volume | 6 |
| Issue number | 3 |
| Publication status | Published - 16 Sept 2024 |
Abstract
Simulations of lattice gauge theories on noisy quantum hardware inherently suffer from violations of the gauge symmetry due to coherent and incoherent errors of the underlying physical system that implements the simulation. These gauge violations cause the simulations to become unphysical requiring the result of the simulation to be discarded. We investigate an active correction scheme that relies on detecting gauge violations locally and subsequently correcting them by dissipatively driving the system back into the physical gauge sector. We show that the correction scheme not only ensures the protection of the gauge symmetry, but it also leads to a longer validity of the simulation results even within the gauge-invariant sector. Finally, we discuss further applications of the scheme such as preparation of the many-body ground state of the simulated system.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical Review Research, Vol. 6, No. 3, 033306, 16.09.2024.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Stabilizing quantum simulations of lattice gauge theories by dissipation
AU - Schmale, Tobias
AU - Weimer, Hendrik
N1 - Publisher Copyright: © 2024 authors. Published by the American Physical Society.
PY - 2024/9/16
Y1 - 2024/9/16
N2 - Simulations of lattice gauge theories on noisy quantum hardware inherently suffer from violations of the gauge symmetry due to coherent and incoherent errors of the underlying physical system that implements the simulation. These gauge violations cause the simulations to become unphysical requiring the result of the simulation to be discarded. We investigate an active correction scheme that relies on detecting gauge violations locally and subsequently correcting them by dissipatively driving the system back into the physical gauge sector. We show that the correction scheme not only ensures the protection of the gauge symmetry, but it also leads to a longer validity of the simulation results even within the gauge-invariant sector. Finally, we discuss further applications of the scheme such as preparation of the many-body ground state of the simulated system.
AB - Simulations of lattice gauge theories on noisy quantum hardware inherently suffer from violations of the gauge symmetry due to coherent and incoherent errors of the underlying physical system that implements the simulation. These gauge violations cause the simulations to become unphysical requiring the result of the simulation to be discarded. We investigate an active correction scheme that relies on detecting gauge violations locally and subsequently correcting them by dissipatively driving the system back into the physical gauge sector. We show that the correction scheme not only ensures the protection of the gauge symmetry, but it also leads to a longer validity of the simulation results even within the gauge-invariant sector. Finally, we discuss further applications of the scheme such as preparation of the many-body ground state of the simulated system.
UR - http://www.scopus.com/inward/record.url?scp=85204870153&partnerID=8YFLogxK
U2 - 10.48550/arXiv.2404.16454
DO - 10.48550/arXiv.2404.16454
M3 - Article
AN - SCOPUS:85204870153
VL - 6
JO - Physical Review Research
JF - Physical Review Research
SN - 2643-1564
IS - 3
M1 - 033306
ER -