Results 71 to 80 of about 29,716 (213)

Dark Dimension With (Little) Strings Attached

Fortschritte der Physik, Volume 73, Issue 4, April 2025.
Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley   +1 more source

Statistical transmutation of quantum bosonic strings coupled to general four-dimensional Chern-Simons theory

, 2002
A bosonic string coupled to the generalized Chern-Simons theory in 3+1D acquires a magnetic field along itself, when it is closed, and a topological charge at its extremity, when it is open.
E. C. Marino, E. Cremer, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, E.C. Marino, G. ’t Hooft, H. Fort, J. Barcelos-Neto, J. Barcelos-Neto, L.P. Kadanoff, R. Gambini, X. Fustero   +14 more
core   +1 more source

A note on bosonic open strings in constant B field [PDF]

, 1999
We sketch the main steps of old covariant quantization of bosonic open strings in a constant $B$ field background. We comment on its space-time symmetries and the induced effective metric.
A. Astashkevich, A. Belopolsky, A. Connes, Ansar Fayyazuddin, C. Chu, F. Ardalan, M. M. Sheikh-Jabbari, Maxim Zabzine, N. Seiberg, V. Schomerus   +9 more
core   +5 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

New BPS states from bosonic/heterotic duality

Journal of High Energy Physics
In this paper, we consider the recently proposed bosonic/heterotic duality that relates the heterotic superstrings to the noncritical bosonic string. Although the latter is nonsupersymmetric, it can be viewed as pseudo-supersymmetric in that the theory ...
Kai-Peng Lu, H. Lü, Liang Ma
doaj   +1 more source

Stringy scaling of n-point Regge string scattering amplitudes

Journal of High Energy Physics, 2023
We discover a stringy scaling behavior for a class of n-point Regge string scattering amplitudes (RSSA). The number of independent kinematics variables is found to be reduced by dim M $$ \mathcal{M} $$ .
Sheng-Hong Lai, Jen-Chi Lee, Yi Yang
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

A new approach to superstring

Journal of High Energy Physics
We show how starting with one-string space of states in BRST formalism one can construct a large class of physical quantities containing, in particular, scattering amplitudes for bosonic string and superstring.
A. Schwarz
doaj   +1 more source

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