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Two Views on Time Reversal

North, Jill (2008) Two Views on Time Reversal. UNSPECIFIED.


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In a recent paper, Malament (2004) employs a time reversal transformation that differs from the standard one, without explicitly arguing for it. This is a new and important understanding of time reversal that deserves arguing for in its own right. I argue that it improves upon the standard one. Recent discussion has focused on whether velocities should undergo a time reversal operation. I address a prior question: What is the proper notion of time reversal? This is important, for it will affect our conclusion as to whether our best theories are time-reversal symmetric, and hence whether our spacetime is temporally oriented.

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Item Type: Other
North, Jill
Keywords: Time reversal; time reversal transformation; time reversal symmetry; invariance; Malament.
Subjects: Specific Sciences > Physics
Depositing User: Jill North
Date Deposited: 20 Oct 2009
Last Modified: 07 Oct 2010 15:18
Item ID: 4960
Subjects: Specific Sciences > Physics
Date: April 2008

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