Results 11 to 20 of about 15,915 (158)

Conflicts with de Sitter Vacua in Superstring Theory

open access: diamondMcGill Science Undergraduate Research Journal
Models of our universe lack consistency at different energy scales, so we require a theory with ultraviolet (UV) completion such as string theory. A suitable candidate to model our universe in this framework is de Sitter space, a spacetime which expands ...
J. Morais
semanticscholar   +4 more sources

Stability of vacua and domain walls in supergravity and superstring theory [PDF]

open access: greenAIP Conference Proceedings, 1992
We address the possibility of false vacuum decay in N=1 supergravity theories, including those corresponding to superstring vacua. By establishing a Bogomol’nyi bound for the energy density stored in the domain wall of the O(4) invariant bubble, we show ...
Mirjam Cvetič
semanticscholar   +4 more sources

Non-perturbative stability of supergravity and superstring vacua [PDF]

open access: hybridNuclear Physics B, 1993
25 pages NSF-ITP-92-84, UPR-494-T, YCTP-P44 ...
Mirjam Cvetič   +2 more
semanticscholar   +4 more sources

Anomalies, dualities, and topology of D = 6 N = 1 superstring vacua [PDF]

open access: greenNuclear Physics B, 1996
We consider various aspects of compactifications of the Type I/heterotic $Spin(32)/\Z_2$ theory on K3. One family of such compactifications includes the standard embedding of the spin connection in the gauge group, and is on the same moduli space as the compactification of the heterotic $E_8\times E_8$ theory on K3 with instanton numbers (8,16 ...
Micha Berkooz   +5 more
semanticscholar   +6 more sources

Classification of flat directions in perturbative heterotic superstring vacua with anomalous U(1) [PDF]

open access: hybridNuclear Physics B, 1998
26 ...
Gerald Cleaver   +4 more
semanticscholar   +5 more sources

Branes with brains: exploring string vacua with deep reinforcement learning

open access: yesJournal of High Energy Physics, 2019
We propose deep reinforcement learning as a model-free method for exploring the landscape of string vacua. As a concrete application, we utilize an artificial intelligence agent known as an asynchronous advantage actor-critic to explore type IIA ...
James Halverson, Fabian Ruehle
exaly   +3 more sources

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