Université de Tours

output

19932026

most citedAccelerating Universes with Scaling Dark Matter

2.5k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2022 · hep-thShow all

16 papers · 2 filters

hep-th2022★ 7 cited

Space-time structure, asymptotic radiation and information recovery for a quantum hybrid state

Yohan Potaux, Debajyoti Sarkar, Sergey N. Solodukhin

A hybrid quantum state is a combination of the Hartle-Hawking state for the physical particles and the Boulware state for the non-physical ones (such as ghosts), as was introduced…

hep-th2022★ 26 cited

Carrollian conformal scalar as flat-space singleton

Xavier Bekaert, Andrea Campoleoni, Simon Pekar

We show that, in any space-time dimension, the on-shell (electric) conformal Carrollian scalar can be interpreted as the flat-space limit of the singleton representation of the con…

hep-th2022★ 166 cited

Bridging Carrollian and Celestial Holography

Laura Donnay, Adrien Fiorucci, Yannick Herfray +1

Gravity in $4 d$ asymptotically flat spacetime constitutes the archetypal example of a gravitational system with leaky boundary conditions. Pursuing our analysis of [1], we argue th…

hep-th2022★ 2 cited

Algebraic Bethe Ansatz for the Open XXZ Spin Chain with Non-Diagonal Boundary Terms via $U_{q} sl_{2}$ Symmetry

Dmitry Chernyak, Azat M. Gainutdinov, Jesper Lykke Jacobsen +1

We derive by the traditional algebraic Bethe ansatz method the Bethe equations for the general open XXZ spin chain with non-diagonal boundary terms under the Nepomechie constraint…

hep-th2022★ 6 cited

Hall effects in Carroll dynamics

L. Marsot, P. -M. Zhang, M. Chernodub +1

``Do Carroll particles move?'' The answer depends on the characteristics of the particle such as its mass, spin, electric charge, and magnetic moment. A massive Carroll particle (c…

hep-th2022★ 10 cited

Electroweak multi-monopoles

Romain Gervalle, Mikhail S. Volkov

We construct the multi-charge generalizations for the electroweak magnetic monopole solution of Cho and Maison within a wide range of values of the magnetic charge. We use the same…

hep-th2022★ 26 cited

Higher-Spin Self-Dual Yang-Mills and Gravity from the twistor space

Yannick Herfray, Kirill Krasnov, Evgeny Skvortsov

We lift the recently proposed theories of higher-spin self-dual Yang-Mills (SDYM) and gravity (SDGR) to the twistor space. We find that the most natural room for the twistor formul…

hep-th2022★ 36 cited

Massless Scalars and Higher-Spin BMS in Any Dimension

Xavier Bekaert, Blagoje Oblak

Starting from the asymptotic kinematics of massless scalar fields near null infinity in any spacetime dimension, we build two higher-spin extensions of the Carrollian definition of…

hep-th2022★ 3 cited

Instantons in rotating finite-temperature Yang-Mills gas

M. N. Chernodub

We find an instanton (caloron) solution in the finite-temperature SU(2) gluon gas subjected to (imaginary, in Euclidean spacetime) rotation. We demonstrate that the rotation decrea…

hep-th2022★ 1 cited

Arnol'd cat map lattices

Minos Axenides, Emmanuel Floratos, Stam Nicolis

We construct Arnol'd cat map lattice field theories in phase space and configuration space. In phase space we impose that the evolution operator of the linearly coupled maps be an…

hep-th2022★ 6 cited

$U_{q} sl_{2}$ -invariant non-compact boundary conditions for the XXZ spin chain

Dmitry Chernyak, Azat M. Gainutdinov, Hubert Saleur

We introduce new $U_{q} sl_{2}$ -invariant boundary conditions for the open XXZ spin chain. For generic values of $q$ we couple the bulk Hamiltonian to an infinite-dimensional…

hep-th2022★ 5 cited

The continuum limit of the modular discretization of AdS $_{2}$

Minos Axenides, Emmanuel Floratos, Stam Nicolis

According to the holographic picture of 't Hooft and Susskind, the black hole entropy, $S_{BH}$ , is carried by the chaotic microscopic degrees of freedom, that live in the near…

hep-th2022

The SU(2) Lie-Poisson Algebra and its Descendants

Jin Dai, Theodora Ioannidou, Antti Niemi

In this paper, a novel discrete algebra is presented which follows by combining the SU(2) Lie-Poisson bracket with the discrete Frenet equation. Physically, the construction descri…

hep-th2022★ 16 cited

Electroweak monopoles and their stability

Romain Gervalle, Mikhail S. Volkov

We apply a generalized field ansatz to describe the spherically symmetric sector of classical solutions of the electroweak theory. This sector contains Abelian magnetic monopoles l…

hep-th2022★ 3 cited

On Higgs inflation in non-minimally coupled models of gravity

Noureddine Mohammedi

Models of inflation in which the Higgs field is non-minimally coupled to gravity lead, after a recaling of the metric, to a complicated expression for the potential of the inflaton…