activity
19922023
most citedEntropy Bounds and Dark Energy

840 citations · 3.6k across the 110 of their papers we have counts for

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Showing 2004Show all

11 papers · 1 filter

hep-ph2004

Opening the Window for Technicolor

Deog Ki Hong, Stephen D. H. Hsu, Francesco Sannino

Recently a new class of technicolor models are proposed, using technifermions of symmetric second-rank tensor. In the models, one can make reasonable estimates of physical quantiti…

hep-ph2004★ 42 cited

New Solutions to the Strong CP Problem

S. D. H. Hsu, F. Sannino

We exhibit a solution to the strong CP problem in which ultraviolet physics renders the QCD theta angle physically unobservable. Our models involve new strong interactions beyond Q…

hep-th2004

Lightsheets, Branes and the Covariant Entropy Bound

Deog Ki Hong, Stephen D. H. Hsu

We investigate the geometry of lightsheets comprised of null geodesics near a brane. Null geodesics which begin parallel to a brane a distance d away are typically gravitationally…

hep-ph2004★ 201 cited

Composite Higgs from Higher Representations

D. K. Hong, S. D. Hsu, F. Sannino

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

astro-ph2004★ 121 cited

Gradient instability for w < -1

Stephen D. H. Hsu, Alejandro Jenkins, Mark B. Wise

We show that in single scalar field models of the dark energy with equations of state satisfying , the effective Lagrangian for fluctuations about the homogeneo…

hep-th2004★ 42 cited

Anthropic Distribution for Cosmological Constant and Primordial Density Perturbations

Michael L. Graesser, Stephen D. H. Hsu, Alejandro Jenkins +1

The anthropic principle has been proposed as an explanation for the observed value of the cosmological constant. Here we revisit this proposal by allowing for variation between uni…