Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities

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Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities. / Liu, Zhao Di; Lyyra, Henri; Sun, Yong Nan; Liu, Bi Heng; Li, Chuan Feng; Guo, Guang Can; Maniscalco, Sabrina; Piilo, Jyrki.

In: Nature Communications, Vol. 9, No. 1, 3453, 01.12.2018, p. 1-7.

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Liu, Zhao Di ; Lyyra, Henri ; Sun, Yong Nan ; Liu, Bi Heng ; Li, Chuan Feng ; Guo, Guang Can ; Maniscalco, Sabrina ; Piilo, Jyrki. / Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities. In: Nature Communications. 2018 ; Vol. 9, No. 1. pp. 1-7.

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@article{0deada0a72a847bfbd809f982675605e,
title = "Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities",
abstract = "Engineering, controlling, and simulating quantum dynamics is a strenuous task. However, these techniques are crucial to develop quantum technologies, preserve quantum properties, and engineer decoherence. Earlier results have demonstrated reservoir engineering, construction of a quantum simulator for Markovian open systems, and controlled transition from Markovian to non-Markovian regime. Dephasing is an ubiquitous mechanism to degrade the performance of quantum computers. However, all-purpose quantum simulator for generic dephasing is still missing. Here, we demonstrate full experimental control of dephasing allowing us to implement arbitrary decoherence dynamics of a qubit. As examples, we use a photon to simulate the dynamics of a qubit coupled to an Ising chain in a transverse field and also demonstrate a simulation of nonpositive dynamical map. Our platform opens the possibility to simulate dephasing of any physical system and study fundamental questions on open quantum systems.",
author = "Liu, {Zhao Di} and Henri Lyyra and Sun, {Yong Nan} and Liu, {Bi Heng} and Li, {Chuan Feng} and Guo, {Guang Can} and Sabrina Maniscalco and Jyrki Piilo",
year = "2018",
month = "12",
day = "1",
doi = "10.1038/s41467-018-05817-x",
language = "English",
volume = "9",
pages = "1--7",
journal = "Nature Communications",
issn = "2041-1723",
number = "1",

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TY - JOUR

T1 - Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities

AU - Liu, Zhao Di

AU - Lyyra, Henri

AU - Sun, Yong Nan

AU - Liu, Bi Heng

AU - Li, Chuan Feng

AU - Guo, Guang Can

AU - Maniscalco, Sabrina

AU - Piilo, Jyrki

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Engineering, controlling, and simulating quantum dynamics is a strenuous task. However, these techniques are crucial to develop quantum technologies, preserve quantum properties, and engineer decoherence. Earlier results have demonstrated reservoir engineering, construction of a quantum simulator for Markovian open systems, and controlled transition from Markovian to non-Markovian regime. Dephasing is an ubiquitous mechanism to degrade the performance of quantum computers. However, all-purpose quantum simulator for generic dephasing is still missing. Here, we demonstrate full experimental control of dephasing allowing us to implement arbitrary decoherence dynamics of a qubit. As examples, we use a photon to simulate the dynamics of a qubit coupled to an Ising chain in a transverse field and also demonstrate a simulation of nonpositive dynamical map. Our platform opens the possibility to simulate dephasing of any physical system and study fundamental questions on open quantum systems.

AB - Engineering, controlling, and simulating quantum dynamics is a strenuous task. However, these techniques are crucial to develop quantum technologies, preserve quantum properties, and engineer decoherence. Earlier results have demonstrated reservoir engineering, construction of a quantum simulator for Markovian open systems, and controlled transition from Markovian to non-Markovian regime. Dephasing is an ubiquitous mechanism to degrade the performance of quantum computers. However, all-purpose quantum simulator for generic dephasing is still missing. Here, we demonstrate full experimental control of dephasing allowing us to implement arbitrary decoherence dynamics of a qubit. As examples, we use a photon to simulate the dynamics of a qubit coupled to an Ising chain in a transverse field and also demonstrate a simulation of nonpositive dynamical map. Our platform opens the possibility to simulate dephasing of any physical system and study fundamental questions on open quantum systems.

UR - http://www.scopus.com/inward/record.url?scp=85052295602&partnerID=8YFLogxK

U2 - 10.1038/s41467-018-05817-x

DO - 10.1038/s41467-018-05817-x

M3 - Article

VL - 9

SP - 1

EP - 7

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

IS - 1

M1 - 3453

ER -

ID: 27790258