Arrow of time and its reversal on the IBM quantum computer

doi:10.1038/s41598-019-40765-6

Title: Arrow of time and its reversal on the IBM quantum computer

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Abstract

Uncovering the origin of the “arrow of time” remains a fundamental scientific challenge. Within the framework of statistical physics, this problem was inextricably associated with the second Law of thermodynamics, which declares that entropy growth proceeds from the system’s entanglement with the environment. this poses a question of whether it is possible to develop protocols for circumventing the irreversibility of time and if so to practically implement these protocols. Here we show that, while in nature the complex conjugation needed for time reversal may appear exponentially improbable, one can design a quantum algorithm that includes complex conjugation and thus reverses a given quantum state. Using this algorithm on an IBM quantum computer enables us to experimentally demonstrate a backward time dynamics for an electron scattered on a two-level impurity.

Authors:

Lesovik, G. B. ^[1]; Sadovskyy, I. A. ^[2]; Suslov, M. V. ^[1]; Lebedev, A. V. ^[3];

^[2]

Moscow Institute of Physics and Technology (Russia)
Argonne National Lab. (ANL), Argonne, IL (United States)
Moscow Institute of Physics and Technology (Russia); ETH Zürich (Switzerland)

Publication Date:: 2019-03-13

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Swiss National Science Foundation (SNSF); Russian Federation

OSTI Identifier:: 1501597

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 97 MATHEMATICS AND COMPUTING

Citation Formats


                    Lesovik, G. B., Sadovskyy, I. A., Suslov, M. V., Lebedev, A. V., and Vinokur, V. M. Arrow of time and its reversal on the IBM quantum computer.  United States: N. p., 2019. 
        Web.  doi:10.1038/s41598-019-40765-6.

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                    Lesovik, G. B., Sadovskyy, I. A., Suslov, M. V., Lebedev, A. V., & Vinokur, V. M. Arrow of time and its reversal on the IBM quantum computer.  United States.  doi:10.1038/s41598-019-40765-6.

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                    Lesovik, G. B., Sadovskyy, I. A., Suslov, M. V., Lebedev, A. V., and Vinokur, V. M. Wed .  
        "Arrow of time and its reversal on the IBM quantum computer".  United States.  doi:10.1038/s41598-019-40765-6.  https://www.osti.gov/servlets/purl/1501597.

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@article{osti_1501597,

  title        = {Arrow of time and its reversal on the IBM quantum computer},

  author       = {Lesovik, G. B. and Sadovskyy, I. A. and Suslov, M. V. and Lebedev, A. V. and Vinokur, V. M.},

  abstractNote = {Uncovering the origin of the “arrow of time” remains a fundamental scientific challenge. Within the framework of statistical physics, this problem was inextricably associated with the second Law of thermodynamics, which declares that entropy growth proceeds from the system’s entanglement with the environment. this poses a question of whether it is possible to develop protocols for circumventing the irreversibility of time and if so to practically implement these protocols. Here we show that, while in nature the complex conjugation needed for time reversal may appear exponentially improbable, one can design a quantum algorithm that includes complex conjugation and thus reverses a given quantum state. Using this algorithm on an IBM quantum computer enables us to experimentally demonstrate a backward time dynamics for an electron scattered on a two-level impurity.},

  doi          = {10.1038/s41598-019-40765-6},

  journal      = {Scientific Reports},

  number       = 1,

  volume       = 9,

  place        = {United States},

  year         = {2019},

  month        = {3}

}

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DOI: 10.1038/s41598-019-40765-6

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