4 papers
Is Time Reversal in de Sitter Space a Spontaneously Broken Gauge Symmetry?
Leonard Susskind
I'll begin with some well-deserved acknowledgements: I am grateful to Daniel Harlow for discussions of time-reversal holonomies. I have also benefited from a long ongoing correspon…
More About the Spontaneous Breaking of Time Reversal in de Sitter Space
Leonard Susskind
It is widely thought that the quantum theory of de Sitter space requires the existence of a physical observer in the static patch. What exactly is meant by an observer is unclear;…
Why do we Need Observers? Spontaneous Breaking of Time-Reversal in de Sitter Space
Leonard Susskind
In this paper I explain the relation between the need for observers in de Sitter space and the spontaneous breakdown of time-reversal symmetry.
Where is the Entropy in DSSYK-de Sitter? Correction to a wrong claim
Leonard Susskind
A question arises in the holographic description of the static patch of de Sitter space: Where does the entropy reside? The answer of course is in the stretched horizon, but how fa…