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Publications Influence

Entropy bounds and dark energy

- S. Hsu
- Physics
- 3 March 2004

Abstract Entropy bounds render quantum corrections to the cosmological constant Λ finite. Under certain assumptions, the natural value of Λ is of order the observed dark energy density ∼10 −10 eV 4… Expand

558 6- PDF

Composite Higgs from higher representations

- D. K. Hong, S. Hsu, Francesco Sannino
- Physics
- 18 June 2004

We investigate new models of dynamical electroweak symmetry breaking resulting from the condensation of fermions in higher representations of the technicolor group. These models lie close to the… Expand

145 2- PDF

Minimum Length from Quantum Mechanics and General Relativity

- X. Calmet, M. Graesser, S. Hsu
- Physics
- 4 May 2004

We derive fundamental limits on measurements of position, arising from quantum mechanics and classical general relativity. First, we show that any primitive probe or target used in an experiment must… Expand

22 2

Solutions to the strong-CP problem in a world with gravity☆

- R. Holman, S. Hsu, T. Kephart, E. Kolb, R. Watkins, L. Widrow
- Physics
- 9 March 1992

We examine various solutions of the strong-CP problem to determine their sensitivity to possible violations of global symmetries by Plauck scale physics. While some solutions remain viable even in… Expand

228 1- PDF

Colorful quantum black holes at the LHC

We examine the LHC phenomenology of quantum black holes in models of TeV gravity. By quantum black holes we mean black holes of the smallest masses and entropies, far from the semiclassical regime.… Expand

105 1- PDF

What is the entropy of the universe

- P. Frampton, S. Hsu, T. Kephart, D. Reeb
- Physics
- 11 January 2008

Standard calculations suggest that the entropy of our universe is dominated by black holes, whose entropy is of order their area in Planck units, although they comprise only a tiny fraction of its… Expand

44 1- PDF

Minimum length from quantum mechanics and classical general relativity.

- X. Calmet, M. Graesser, S. Hsu
- Physics, Medicine
- Physical review letters
- 4 May 2004

We derive fundamental limits on measurements of position, arising from quantum mechanics and classical general relativity. First, we show that any primitive probe or target used in an experiment must… Expand

92 1- PDF

Minimum length from first principles

- X. Calmet, M. Graesser, S. Hsu
- Physics
- 16 May 2005

We show that no device or gedanken experiment is capable of measuring a distance less than the Planck length. By "measuring a distance less than the Planck length" we mean, technically, resolve the… Expand

44 1- PDF

Black hole entropy, curved space and monsters

We investigate the microscopic origin of black hole entropy, in particular the gap between the maximum entropy of ordinary matter and that of black holes. Using curved space, we construct… Expand

41 1- PDF

Gradient instability for w<−1

- S. Hsu, Alejandro Jenkins, M. Wise
- Physics
- 1 June 2004

Abstract We show that in single scalar field models of the dark energy with equations of state satisfying w ≡ p / ρ − 1 , the effective Lagrangian for fluctuations about the homogeneous background… Expand

92 1- PDF

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