Arrow of time and its reversal on the IBM quantum computer
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.
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Springer Nature
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Springer Nature
5 publications, 16.13%
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Elsevier
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Elsevier
5 publications, 16.13%
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American Physical Society (APS)
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American Physical Society (APS)
4 publications, 12.9%
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IOP Publishing
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IOP Publishing
4 publications, 12.9%
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
3 publications, 9.68%
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American Institute of Physics (AIP)
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American Institute of Physics (AIP)
2 publications, 6.45%
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Wiley
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Wiley
2 publications, 6.45%
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Uspekhi Fizicheskikh Nauk Journal
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Uspekhi Fizicheskikh Nauk Journal
1 publication, 3.23%
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SAGE
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SAGE
1 publication, 3.23%
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Walter de Gruyter
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Walter de Gruyter
1 publication, 3.23%
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