Results 91 to 100 of about 130,580 (217)

Stringy scaling of multi-tensor hard string scattering amplitudes and the K-identities

Journal of High Energy Physics
We calculate n-point hard string scattering amplitudes (HSSA) with n − 2 tachyons and 2 tensor states at arbitrary mass levels. We discover the stringy scaling behavior of these HSSA.
Sheng-Hong Lai, Jen-Chi Lee, Yi Yang
doaj   +1 more source

Conformally invariant random fields, Liouville quantum gravity measures, and random Paneitz operators on Riemannian manifolds of even dimension

Journal of the London Mathematical Society, Volume 110, Issue 5, November 2024.
Abstract For large classes of even‐dimensional Riemannian manifolds (M,g)$(M,g)$, we construct and analyze conformally invariant random fields. These centered Gaussian fields h=hg$h=h_g$, called co‐polyharmonic Gaussian fields, are characterized by their covariance kernels k which exhibit a precise logarithmic divergence: |k(x,y)−log1d(x,y)|≤C$\big ...
Lorenzo Dello Schiavo, Ronan Herry, Eva Kopfer, Karl‐Theodor Sturm   +3 more
wiley   +1 more source

Performance of Rotation‐Symmetric Bosonic Codes in a Quantum Repeater Network

Advanced Quantum Technologies, Volume 7, Issue 6, June 2024.
This work shows the performance of a quantum repeater protocol embedded with the rotation‐symmetric bosonic codes in a quantum key distribution scenario. The secret key rate greatly outperforms the bound of direct channel transmission, as well as the rate of the cat codes.
Pei‐Zhe Li, Josephine Dias, William J. Munro, Peter van Loock, Kae Nemoto, Nicoló Lo Piparo   +5 more
wiley   +1 more source

Instantons in sine-Liouville theory

Journal of High Energy Physics
We compute instanton corrections to the partition function of sine-Liouville (SL) theory, which provides a worldsheet description of two-dimensional string theory in a non-trivial tachyon background.
Sergei Alexandrov, Raghu Mahajan, Ashoke Sen   +2 more
doaj   +1 more source

Phase Noise in Real‐World Twin‐Field Quantum Key Distribution

Advanced Quantum Technologies, Volume 7, Issue 6, June 2024.
This study explores the impact of various noise sources on twin‐field quantum key distribution (TF‐QKD) systems, focusing on phase noise from photon sources and fibers. Results show that different TF‐QKD protocols are similarly affected by phase noise.
Gianluca Bertaina, Cecilia Clivati, Simone Donadello, Carlo Liorni, Alice Meda, Salvatore Virzì, Marco Gramegna, Marco Genovese, Filippo Levi, Davide Calonico, Massimiliano Dispenza, Ivo Pietro Degiovanni   +11 more
wiley   +1 more source

The first α′-correction to homogeneous Yang-Baxter deformations using O(d, d)

Journal of High Energy Physics, 2020
We use the O(d, d)-covariant formulation of supergravity familiar from Double Field Theory to find the first α′-correction to (unimodular) homogeneous Yang-Baxter (YB) deformations of the bosonic string.
Riccardo Borsato, Alejandro Vilar López, Linus Wulff   +2 more
doaj   +1 more source

Topological recursion for Kadomtsev–Petviashvili tau functions of hypergeometric type

Journal of the London Mathematical Society, Volume 109, Issue 6, June 2024.
Abstract We study the n$n$‐point differentials corresponding to Kadomtsev–Petviashvili (KP) tau functions of hypergeometric type (also known as Orlov–Scherbin partition functions), with an emphasis on their ℏ2$\hbar ^2$‐deformations and expansions.
Boris Bychkov, Petr Dunin‐Barkowski, Maxim Kazarian, Sergey Shadrin   +3 more
wiley   +1 more source

Note on W3 Realizations of the Bosonic String

, 1994
In order to investigate to what extent string theories are different vacua of a general string theory (the ``universal string"), we discuss realizations of the bosonic string as particular background of certain types of $W$-strings.
Bais, Bastianelli, Bastianelli, Bastianelli, Bergshoeff, Berkovits, Berkovits, Berkovits, Bershadsky, Bershadsky, Figueroa-O'Farrill, Fiorenzo Bastianelli, Ishikawa, Khviengia, Krinovos, Kunitomo, Nobuyoshi Ohta, Ohta, Polyakov, Thielemans   +19 more
core   +2 more sources

Effective potential for revolving D-branes

Journal of High Energy Physics, 2019
We quantize an open string stretched between D0-branes revolving around each other. The worldsheet theory is analyzed in a rotating coordinate system in which the worldsheet fields obey simple boundary conditions, but instead the worldsheet Lagrangian ...
Satoshi Iso, Hikaru Ohta, Takao Suyama
doaj   +1 more source

Cosmic Rays from Cosmic Strings with Condensates

, 2009
We re-visit the production of cosmic rays by cusps on cosmic strings. If a scalar field (``Higgs'') has a linear interaction with the string world-sheet, such as would occur if there is a bosonic condensate on the string, cusps on string loops emit ...
A. Vilenkin, J. Abraham, Tanmay Vachaspati, V. S. Berezinsky   +3 more
core   +1 more source