Direct reconstruction of the quantum-master-equation dynamics of a trapped-ion qubit

Eitan Ben Av; Yotam Shapira; Nitzan Akerman; Roee Ozeri

doi:https://doi.org/10.1103/PhysRevA.101.062305

Direct reconstruction of the quantum-master-equation dynamics of a trapped-ion qubit

Eitan Ben Av, Yotam Shapira, Nitzan Akerman, Roee Ozeri

Department of Physics of Complex Systems

Weizmann Institute of Science

Research output: Contribution to journal › Article › peer-review

Abstract

The physics of Markovian open quantum systems can be described by quantum master equations. These are dynamical equations that incorporate the Hamiltonian and jump operators and generate the system's time evolution. Reconstructing the system's Hamiltonian and its coupling to the environment from measurements is important both for fundamental research and for performance evaluation of quantum machines. Here we introduce a method that reconstructs the dynamical equation of open quantum systems, directly from a set of expectation values of selected observables. We benchmark our technique both by a simulation and experimentally, by measuring the dynamics of a trapped Sr-88(+) ion qubit under spontaneous photon scattering.

Original language	English
Article number	062305
Number of pages	6
Journal	Physical Review A
Volume	101
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.101.062305
State	Published - 2 Jun 2020

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https://doi.org/10.1103/PhysRevA.101.062305

https://arxiv.org/abs/2003.04678License: Other

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title = "Direct reconstruction of the quantum-master-equation dynamics of a trapped-ion qubit",

abstract = "The physics of Markovian open quantum systems can be described by quantum master equations. These are dynamical equations that incorporate the Hamiltonian and jump operators and generate the system's time evolution. Reconstructing the system's Hamiltonian and its coupling to the environment from measurements is important both for fundamental research and for performance evaluation of quantum machines. Here we introduce a method that reconstructs the dynamical equation of open quantum systems, directly from a set of expectation values of selected observables. We benchmark our technique both by a simulation and experimentally, by measuring the dynamics of a trapped Sr-88(+) ion qubit under spontaneous photon scattering.",

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Direct reconstruction of the quantum-master-equation dynamics of a trapped-ion qubit

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