• Publications
  • Influence
Space-time as a causal set.
We propose that space-time at the smallest scales is in reality a causal set: a locally finite set of elements endowed with a partial order corresponding to the macroscopic relation that defines pastExpand
  • 701
  • 34
Quantum source of entropy for black holes.
We associate to any quantum field propagating in the background metric of a black hole an effective density matrix whose statistical entropy can be interpreted as a contribution to the total entropyExpand
  • 961
  • 20
Brownian motion at absolute zero.
  • Sinha, Sorkin
  • Physics, Medicine
  • Physical review. B, Condensed matter
  • 1 April 1992
We derive a general quantum formula giving the mean-square displacement of a diffusing particle as a function of time. Near 0 K we find a universal logarithmic behavior (valid for times longer thanExpand
  • 10
  • 2
  • PDF
Topology change and monopole creation.
  • Sorkin
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 15 February 1986
Lorentzian cobordism is considered as a mechanism for topology change in quantum gravity. It is shown that the condition for a topological cobordism to admit an appropriate metric is different inExpand
  • 43
  • 2
When can identical particles collide?
  • Bourdeau, Sorkin
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 15 January 1992
It is customary, when discussing configuration spaces of identical particles in two or more dimensions, to discard the configurations where two or more particles overlap, the justification being thatExpand
  • 35
Bombelli et al. reply.
  • 24
Toward a proof of entropy increase in the presence of quantum black holes.
  • Sorkin
  • Physics, Medicine
  • Physical review letters
  • 5 May 1986
A sufficient condition for the quantum entropy, $\ensuremath{-}\mathrm{Tr}(\ensuremath{\rho}\mathrm{ln}\ensuremath{\rho})$, to be nondecreasing under a tracepreserving positive linear map is that theExpand
  • 37
Continuous ambulatory peritoneal dialysis.
We isolated an unusual gram-negative organism, rarely considered a human pathogen, which appeared to cause peritonitis in one of our continuous ambulatory peritoneal dialysis patients. A 54-year-oldExpand
  • 1
  • PDF
Interpretation of the "quantum-stabilized Skyrmion"
  • 3
Quantum stabilization of the Skyrme soliton.
  • Jain, Schechter, Sorkin
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 1 February 1989
We point out that the putative Skyrme soliton in a simple chiral model of pions (without the Skyrme term) can be stabilized against collapse by quantum fluctuations. This leads to a reasonableExpand
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