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Emergence of opposing arrows of time in open quantum systems

Summary by Nature
Deriving an arrow of time from time-reversal symmetric microscopic dynamics is a fundamental open problem in many areas of physics, ranging from cosmology, to particle physics, to thermodynamics and statistical mechanics. Here we focus on the derivation of the arrow of time in open quantum systems and study precisely how time-reversal symmetry is broken. This derivation involves the Markov approximation applied to a system interacting with an in…

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NatureNature

Emergence of opposing arrows of time in open quantum systems

Deriving an arrow of time from time-reversal symmetric microscopic dynamics is a fundamental open problem in many areas of physics, ranging from cosmology, to particle physics, to thermodynamics and statistical mechanics. Here we focus on the derivation of the arrow of time in open quantum systems and study precisely how time-reversal symmetry is broken. This derivation involves the Markov approximation applied to a system interacting with an in…

·United Kingdom
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Scientific AmericanScientific American

Does Time Work Differently in the Quantum Realm?

Scientists studying a centuries-old mystery of physics suggest two “arrows of time” control the evolution of quantum systems

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Monkey ViralMonkey Viral

Does Time Work Differently in the Quantum Realm? – Monkey Viral

If a cup of water spills on the floor, the water can’t unspill—that is, it’s inconceivable that each water molecule would exactly reverse its course to slip back into the cup. To do so would be to turn back time—something that, as far as we know, can’t be done. The water either spills or it […]

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Scientific American broke the news in on Thursday, February 27, 2025.
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