Results 61 to 70 of about 130,580 (217)

Efficient Simulation of Open Quantum Systems on NISQ Trapped‐Ion Hardware

Advanced Quantum Technologies, Volume 8, Issue 9, September 2025.
Open quantum systems exhibit rich dynamics that can be simulated efficiently on quantum computers, allowing us to learn more about their behavior. This work applies a new method to simulate certain open quantum systems on noisy trapped‐ion quantum hardware.
Colin Burdine, Nora Bauer, George Siopsis, Enrique P. Blair   +3 more
wiley   +1 more source

When strings surprise

Journal of High Energy Physics
We argue that on-shell excitations with large negative energies are created rapidly when the string coupling increases with time. This does not indicate an inconsistency in string theory since the negative energy on-shell excitation is always entangled ...
Nissan Itzhaki, Uri Peleg
doaj   +1 more source

Note about T-duality of non-relativistic string

Journal of High Energy Physics, 2019
In this note we perform canonical analysis of T-duality for non-relativistic string in stringy Newton-Cartan background. We confirm recent result that T-duality along longitudinal spatial direction of stringy Newton-Cartan geometry maps non-relativistic ...
J. Klusoň
doaj   +1 more source

On the Uniqueness of String Theory

, 1993
We show that bosonic strings may be viewed as a particular class of vacua for N=1 superstrings, and N=1 superstrings may be viewed as a particular class of vacua for N=2 strings.
Berkovits, Nathan, Vafa, Cumrun
core   +2 more sources

Quantum Algorithms for Quantum Molecular Systems: A Survey

WIREs Computational Molecular Science, Volume 15, Issue 3, May/June 2025.
Quantum algorithms for quantum molecular systems: from molecular encoding, to Hamiltonian simulation, static properties, and quantum advantage. ABSTRACT Solving quantum molecular systems presents a significant challenge for classical computation. The advent of early fault‐tolerant quantum computing devices offers a promising avenue to address these ...
Yukun Zhang, Xiaoming Zhang, Jinzhao Sun, Heng Lin, Yifei Huang, Dingshun Lv, Xiao Yuan   +6 more
wiley   +1 more source

Dirichlet Boundary Conditions in Generalized Liouville Theory toward a QCD String

, 2000
We consider bosonic noncritical strings as QCD strings and we present a basic strategy to construct them in the context of Liouville theory. We show that Dirichlet boundary conditions play important roles in generalized Liouville theory.
Nakamura, Shin
core   +2 more sources

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

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

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

Non-relativistic D-brane from T-duality along null direction

Journal of High Energy Physics, 2019
We construct new type of non-relativistic D-branes which are defined with the help of T-duality along null direction. We find Lagrangian and Hamiltonian formulation of these D-branes and study their properties under T-duality transformations.
J. Klusoň
doaj   +1 more source