Results 91 to 100 of about 130,847 (255)

Strings Near a Rindler Or Black Hole Horizon [PDF]

, 1994
Orbifold techniques are used to study bosonic, type II and heterotic strings in Rindler space at integer multiples N of the Rindler temperature, and near a black hole horizon at integer multiples of the Hawking temperature, extending earlier results of ...
Andrew Strominger, B. Sathiapalan, C. Callan, C. Vafa, D. J. Gross, David A. Lowe, H. J. de Vega, H. J. de Vega, I. Klebanov, J. A. Bagger, J. J. Atick, J. L. F. Barbon, L. Alvarez Gaume, L. Dixon, L. Dixon, L. Susskind, M. Bañados, N. Sanchez, N. Seiberg, R. Hagedorn, V. P. Nair, Ya. I. Kogan   +21 more
core   +2 more sources

Notes on Characterizations of 2d Rational SCFTs: Algebraicity, Mirror Symmetry, and Complex Multiplication

Fortschritte der Physik, Volume 73, Issue 1-2, February 2025.
Abstract S. Gukov and C. Vafa proposed a characterization of rational N=(1,1)$N=(1,1)$ superconformal field theories (SCFTs) in 1+1$1+1$ dimensions with Ricci‐flat Kähler target spaces in terms of the Hodge structure of the target space, extending an earlier observation by G. Moore.
Abhiram Kidambi, Masaki Okada, Taizan Watari   +2 more
wiley   +1 more source

Instant cosmology

Journal of High Energy Physics
Instant Folded Strings (IFSs) are unconventional light strings that emerge when the string coupling increases with time. A particularly intriguing property of IFSs, especially relevant to cosmology, is that they violate the Null Energy Condition (NEC ...
Nissan Itzhaki, Uri Peleg
doaj   +1 more source

A Space-Time Orbifold: A Toy Model for a Cosmological Singularity [PDF]

, 2002
We explore bosonic strings and Type II superstrings in the simplest time dependent backgrounds, namely orbifolds of Minkowski space by time reversal and some spatial reflections. We show that there are no negative norm physical excitations.
A. Strominger, A.E. Lawrence, Asad Naqvi, C. Kounnas, C.M. Hull, C.R. Nappi, D. Ghoshal, E. Witten, E.J. Martinec, Esko Keski-Vakkuri, G.T. Horowitz, G.T. Horowitz, G.T. Horowitz, J. Khoury, J. Khoury, J. Maldacena, J. Maldacena, L.J. Dixon, L.J. Dixon, L.J. Dixon, M. Asano, M. Banados, M. Natsuume, M. Spradlin, N. Kaloper, P. Ginsparg, R. Bousso, R. Bousso, S. F. Hassan, S. Hamidi, S. Hemming, S. Perlmutter, T. Banks, T. Eguchi, V. Balasubramanian, V. Balasubramanian, Vijay Balasubramanian   +36 more
core   +2 more sources

Trotterless Simulation of Open Quantum Systems for NISQ Quantum Devices

Advanced Quantum Technologies, Volume 8, Issue 1, January 2025.
Open quantum systems exhibit complex dynamics that can be simulated on quantum computers to provide physical insights into their behavior. This work proposes a new method for simulating these systems that reduces the effect of noise and errors on modern quantum hardware.
Colin Burdine, Enrique P. Blair
wiley   +1 more source

Bosonic Description of Spinning Strings in $2+1$ Dimensions [PDF]

, 1996
We write down a general action principle for spinning strings in 2+1 dimensional space-time without introducing Grassmann variables. The action is written solely in terms of coordinates taking values in the 2+1 Poincare group, and it has the usual string
A. P. Balachandran, A. P. Balachandran, A. P. Balachandran, A. P. Balachandran, A. P. Balachandran, A. Schild, A. Stern, B. Harms, B.-S. Skagerstam, E. Witten, F. Lizzi, I. A. Bandos, J. Pawelczyk, P. O. Mazur, R. Efraty, V. G. J. Rodgers   +15 more
core   +2 more sources

Harmonic balls in Liouville quantum gravity

Proceedings of the London Mathematical Society, Volume 130, Issue 1, January 2025.
Abstract Harmonic balls are domains that satisfy the mean‐value property for harmonic functions. We establish the existence and uniqueness of harmonic balls on Liouville quantum gravity (LQG) surfaces using the obstacle problem formulation of Hele–Shaw flow.
Ahmed Bou‐Rabee, Ewain Gwynne
wiley   +1 more source

Torus bundles, automorphisms and T-duality

Journal of High Energy Physics, 2021
We reconsider some older constructions of T-duality, based on automorphisms of the worldsheet operator algebra, in a modern context. It has been long known that at special points in the moduli space of torus compactifications, the target space gauge ...
H. Mahmood, R. A. Reid-Edwards
doaj   +1 more source

Moduli Space Dimensions of Multi-Pronged Strings [PDF]

, 1999
The numbers of bosonic and fermionic zero modes of multi-pronged strings are counted in ${\cal N}=4$ super-Yang-Mills theory and compared with those of the IIB string theory.
A. Sen, Bum-Hoon Lee, C. Fraser, D. Bak, Dongsu Bak, E. J. Weinberg, H. Osborn, Hyunsoo Min, I. Kishimoto, J. D. Blum, J. H. Schwarz, J. P. Gauntlett, J. P. Gauntlett, K. Dasgupta, K. Hashimoto, K. Hashimoto, K. Lee, Koji Hashimoto, M. Krogh, N. S. Manton, N. Sasakura, Naoki Sasakura, O. Aharony, O. Bergman, O. Bergman, S.-J. Rey, T. Kawano, Y. Matsuo   +27 more
core   +2 more sources

Symmetries in the Hamiltonian Formulation of String Theory

Advances in High Energy Physics, Volume 2025, Issue 1, 2025.
In the context of the Hamiltonian formulation of string theory, a widely acknowledged issue is the inability of the first‐class constraints to accurately reproduce the Lagrangian symmetry transformations. We take a critical look at the Hamiltonian formulation of the Polyakov string and demonstrate, using Castellani′s procedure, that diffeomorphism and ...
Héctor A. Benítez, René Negrón, Xiao Yan Chew   +2 more
wiley   +1 more source