Diagnosis of information scrambling from Hamiltonian evolution under decoherence
Diagnosis of information scrambling from Hamiltonian evolution under decoherence
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退相干下哈密顿演化的信息置乱诊断
DOI:
10.1103/physrevd.104.074518
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发表时间:
2021
影响因子:
5
通讯作者:
Kikuchi Yuta
中科院分区:
文献类型:
--
作者:
Hayata Tomoya;Hidaka Yoshimasa;Kikuchi Yuta
We apply a quantum teleportation protocol based on the Hayden-Preskill thought experiment to quantify how scrambling a given quantum evolution is. It has an advantage over the direct measurement of out-of-time ordered correlators when used to diagnose the information scrambling in the presence of decoherence effects stemming from a noisy quantum device. We demonstrate the protocol by applying it to two physical systems: Ising spin chain and SU(2) lattice Yang-Mills theory. To this end, we numerically simulate the time evolution of the two theories in the Hamiltonian formalism. The lattice Yang-Mills theory is implemented with a suitable truncation of Hilbert space on the basis of the Kogut-Susskind formalism. On a two-leg ladder geometry and with the lowest nontrivial spin representations, it can be mapped to a spin chain, which we call theYang-Mills-Ising modeland is also directly applicable to future digital quantum simulations. We find that the Yang-Mills-Ising model shows the signal of information scrambling at late times.
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DOI:
10.1142/s1230161208000043
发表时间:
2007
期刊:
Open Syst. Inf. Dyn.
影响因子:
--
作者:
P. Hayden;M. Horodecki;A. Winter;Jon Yard
通讯作者:
Jon Yard
影响因子:
3.7
作者:
Zabalo, Aidan;Gullans, Michael J.;Wilson, Justin H.;Gopalakrishnan, Sarang;Huse, David A.;Pixley, J. H.
通讯作者:
Pixley, J. H.
影响因子:
5.4
作者:
Bao, Ning;Kikuchi, Yuta
通讯作者:
Kikuchi, Yuta
影响因子:
6.4
作者:
Preskill, John
通讯作者:
Preskill, John
影响因子:
5.4
作者:
L. Piroli;Christoph Sünderhauf;X. Qi
通讯作者:
L. Piroli;Christoph Sünderhauf;X. Qi