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Stirring by Staring: Measurement Induced Chirality

Wampler, Matthew and Khor, Brian J. J. and Refael, Gil and Klich, Israel (2021) Stirring by Staring: Measurement Induced Chirality. . (Unpublished)

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Controlling the dynamics of quantum systems is a current frontier of quantum many-body physics. Recent advancements in experimental techniques suggest exciting new directions in drive-induced quantum states. Here, we present a simple scheme that relies solely on occupation measurements to induce a chiral quantum phase. Namely, we show that by utilizing a pattern of repeated quantum measurements we can produce chiral edge transport of fermions hopping on a Lieb lattice. We study in detail the dependence on measurement frequency, showing that in the Zeno limit the system can be described by a classical stochastic dynamics, yielding protected transport. As the frequency of measurements is reduced, the charge flow is reduced and vanishes when no measurements are done.

Item Type:Report or Paper (Discussion Paper)
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URLURL TypeDescription Paper
Klich, Israel0000-0002-8979-0170
Additional Information:I.K. would like to thank Kun-Woo Kim for discussions. The work of I.K., B.J.J.K. and M.W. was supported in part by the NSF grant DMR-1918207. G.R. acknowledges support from the Institute of Quantum Information and Matter, an NSF Physics Frontiers Center funded by the Gordon and Betty Moore Foundation, and the Simons Foundation, as well as to the NSF DMR grant number 1839271. This work was performed in part at Aspen Center for Physics, which is supported by National Science Foundation grant PHY-1607611.
Group:Institute for Quantum Information and Matter
Funding AgencyGrant Number
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Simons FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:20220113-182208459
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:112868
Deposited By: George Porter
Deposited On:13 Jan 2022 21:15
Last Modified:13 Jan 2022 21:15

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