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Causal asymmetry in a quantum world

Abstract:

Causal asymmetry is one of the great surprises in predictive modeling: The memory required to predict the future differs from the memory required to retrodict the past. There is a privileged temporal direction for modeling a stochastic process where memory costs are minimal. Models operating in the other direction incur an unavoidable memory overhead. Here, we show that this overhead can vanish when quantum models are allowed. Quantum models forced to run in the less-natural temporal directio...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's Version

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Publisher copy:
10.1103/physrevx.8.031013

Authors


Thompson, J More by this author
Garner, AJP More by this author
Mahoney, JR More by this author
Crutchfield, JP More by this author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Atomic & Laser Physics
Oxford college:
Wolfson College
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Publisher:
American Physical Society Publisher's website
Journal:
Physical Review X
Volume:
8
Issue:
3
Pages:
Article: 031013
Publication date:
2018-07-17
DOI:
ISSN:
2160-3308
Pubs id:
pubs:891963
URN:
uri:94d89781-a64c-477d-8c5f-043089a58734
UUID:
uuid:94d89781-a64c-477d-8c5f-043089a58734
Local pid:
pubs:891963
Language:
English
Keywords:

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