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Could our physical universe be time-irreversible?

Suppose that in our universe, there were two initial states which lead to the same outcome state after one time step. How could we possibly remember which of the two steps we came from if the ...
AlgebraicsAnonymous's user avatar
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2 answers
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Entropy of a deterministic reversible system

Suppose a deterministic reversible system evolving from state A of gas located in a small bottle in an otherwise empty room, to state B where the gas is dispersed throughout the room. Why is the ...
nir's user avatar
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If I add one particle to the system at a time, When does the time reversal symmetry breakdown?

Suppose I have a system in my mind which consists of two elementary particles interacting with each other via fundamental interactions. We know that fundamental interactions have $T$-symmetry and ...
Himanshu's user avatar
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Do irreversible processes indicate that time reversible symmetry is a limited phenomenon instead of a universal law? [duplicate]

Physics and chemistry indicate various irreversible processes, while physics also proposes the theory of time reversible symmetry (T-symmetry). I suppose that evidence of irreversible processes ...
James Goetz's user avatar