840 citations · 3.6k across the 110 of their papers we have counts for
6 papers · 2 filters
Does string theory predict an open universe?
R. Buniy, S. Hsu, A. Zee
It has been claimed that the string landscape predicts an open universe, with negative curvature. The prediction is a consequence of a large number of metastable string vacua, and…
Physical limits on information processing
Stephen D. H. Hsu
We derive a fundamental upper bound on the rate at which a device can process information (i.e., the number of logical operations per unit time), arising from quantum mechanics and…
Spacetime topology change and black hole information
Stephen D. H. Hsu
Topology change -- the creation of a disconnected baby universe -- due to black hole collapse may resolve the information loss paradox. Evolution from an early time Cauchy surface…
The null energy condition and instability
Roman V. Buniy, Stephen D. H. Hsu, Brian M. Murray
We extend previous work showing that violation of the null energy condition implies instability in a broad class of models, including gauge theories with scalar and fermionic matte…
Discreteness and the origin of probability in quantum mechanics
Roman V. Buniy, Stephen D. H. Hsu, A. Zee
Attempts to derive the Born rule, either in the Many Worlds or Copenhagen interpretation, are unsatisfactory for systems with only a finite number of degrees of freedom. In the cas…
Thermal gravity, black holes and cosmological entropy
Stephen D. H. Hsu, Brian M. Murray
Taking seriously the interpretation of black hole entropy as the logarithm of the number of microstates, we argue that thermal gravitons may undergo a phase transition to a kind of…