Article
Astronomy & Astrophysics
Debarshi Basu, Boudhayan Lavish, Boudhayan Paul
Summary: We use a suitable replica technique to perturbatively express the entanglement negativity of bipartite mixed states in T (T) over bar-deformed CFT(2)s up to the first order in the deformation parameter. With this perturbative construction, we calculate the entanglement negativity for various bipartite mixed states in T (T) over bar-deformed CFT2 at a finite temperature, and also develop appropriate holographic constructions to compute the entanglement negativity for these states in T (T) over bar-deformed thermal CFT(2)s dual to BTZ black holes in a finite cutoff bulk geometry. The results obtained agree with the corresponding field theoretic results in the limit of small deformation parameter.
Article
Physics, Multidisciplinary
Monica Guica, Ruben Monten
Summary: This article demonstrates that T (T) over bar, J (T) over bar, and J T-a deformed classical CFTs have infinite symmetries, which are an extension of the infinitely-extended conformal and U (1) symmetries of the underlying two-dimensional CFT. Additionally, if the seed CFTs possess affine U (1) symmetry, it also survives in the deformed theories. The associated conserved charges form functional Witt-Kac-Moody algebra for J (T) over bar and J T-a deformations, while two commuting copies of the Witt algebra can be obtained for the T (T) over bar deformation.
Article
Physics, Multidisciplinary
Monica Guica
Summary: A new set of conserved charges has been found in classical J (T) over bar - deformed CFTs, resolving a contradiction and reconciling the inconsistency between symmetry generators and the spectrum.
Article
Astronomy & Astrophysics
Song He, Pujian Mao, Xin-Cheng Mao
Summary: In this paper, a deformed soft graviton theorem in terms of celestial holography is derived, which shows that a two-dimensional irrelevant deformation can be applied to a four-dimensional theory at the amplitude level.
Article
Astronomy & Astrophysics
M. R. Setare, S. N. Sajadi
Summary: This paper studies the holographic entanglement entropy computation of the T(T) overline-deformed conformal field theory, which is dual to some massive deformations of 3D gravity. The correction due to the deformation is computed up to the leading order of the deformation parameter in higher curvature 3D gravities, and the symplectic potential evaluation is used to obtain the entanglement entropy for deformed theories. Agreement between the results is found in each case.
GENERAL RELATIVITY AND GRAVITATION
(2022)
Article
Physics, Multidisciplinary
Marko Medenjak, Giuseppe Policastro, Takato Yoshimura
Summary: This study examines the out-of-equilibrium transport in T(T) over bar -deformed (1 + 1)-dimensional conformal field theories, utilizing integrability and holography to compute transport quantities. The results from both methods are in perfect agreement, confirming the T(T) over bar -deformed holographic correspondence. Additionally, integrability allows for the computation of momentum diffusion, revealing a universal formula and an intriguing connection to reversible cellular automata within T(T) over bar -deformed CFTs.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Yunfeng Jiang
Summary: This paper studies the finite volume spectrum and thermodynamics of the T(T) over bar-deformed Lieb-Liniger model. The results show that when the volume is smaller than a critical value, the deformed spectrum becomes complex, indicating the breakdown of UV physics for one sign of the deformation parameter. For the other sign, there exists an upper bound for the temperature, similar to the Hagedorn behavior of the T(T) over bar-deformed QFTs. Both behaviors can be attributed to the change in particle size caused by the T(T) over tilde-deformation.
Article
Physics, Particles & Fields
Luca Griguolo, Rodolfo Panerai, Jacopo Papalini, Domenico Seminara
Summary: We study the large-N dynamics of T (T) over bar -deformed two-dimensional Yang-Mills theory at genus zero. The 1/N-expansion of the free energy is obtained by exploiting the associated flow equation and the complete phase diagram of the theory is derived for both signs of the rescaled deformation parameter tau. We observe a third-order phase transition driven by instanton condensation, which is the deformed version of the familiar DouglasKazakov transition separating the weakly-coupled from the strongly-coupled phase. By studying these phases, we compute the deformation of both the perturbative sector and the Gross-Taylor string expansion. Nonperturbative corrections in tau drive the system into an unexplored disordered phase separated by a novel critical line meeting tangentially the Douglas-Kazakov one at a tricritical point. The associated phase transition is induced by the collision of large- N saddle points, determining its second-order character.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Multidisciplinary
J. Antonio Garcia, R. Abraham Sanchez-Isidro
Summary: Inspired by ModMax theory, we construct a one-parameter family of 2D dynamical systems consisting of root T(T) over bar-deformed oscillators that preserve duality and depend on a continuous parameter gamma. Despite its nonlinearity, the system is integrable and can be interpreted as two coupled oscillators. We also construct a nonlinear map that transforms the 2D oscillator to the nonlinear one, with a parameter 2 gamma, and reveal the reason behind its existence through the construction of two associated Lax pairs.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Astronomy & Astrophysics
Miao He, Yi-hong Gao
Summary: In this work, mixed boundary conditions in AdS(3) gravitational theory are considered, leading to nontrivial boundary terms and providing the spectrum of T (T) over bar /J (T) over bar -deformed CFTs. By using the Chern-Simons formalism of AdS(3) gravity, the constrained T (T) over bar -deformed Wess-Zumino-Witten (WZW) model is derived, which is shown to be the T (T) over bar -deformed Alekseev-Shatashvili action after disentangling the constraints. Additionally, a J (T) over bar -deformed WZW model is obtained by adding a U(1) gauge field associated to the current J, and its action can also be constructed from the gravity side.
Article
Physics, Multidisciplinary
Christian Ferko, Alessandro Sfondrini, Liam Smith, Gabriele Tartaglino-Mazzucchelli
Summary: This article introduces a deformation of two-dimensional quantum field theories generated by a nonanalytic operator called Root-T(T) over bar. The deformation is closely related to conformal field theory and ModMax theory.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Particles & Fields
Paolo Ceschin, Riccardo Conti, Roberto Tateo
Summary: The T (T) over bar-deformed classical Lagrangian of a 2D Lorentz invariant theory can be derived through a field-dependent change of coordinates. Applying this idea to non-relativistic models, we study the deformed bright, grey and Peregrine's soliton solutions. The perturbation of nonlinear Schrodinger NLS with quartic potential does not trivially emerge from a standard non-relativistic limit of the deformed field theory, suggesting a different type of irrelevant deformation.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Astronomy & Astrophysics
Kuroush Allameh, Amin Faraji Astaneh, Alireza Hassanzadeh
Summary: In this paper, we use holographic methods to calculate the entanglement entropy for field theories modified by T (T) over bar insertion. We perform direct holographic calculations for two-dimensional deformed theory and investigate the general structure of the entanglement entropy for T (T) over bar-deformed theories of arbitrary dimensions using Ryu-Takayanagi's prescription. In both cases, we find a perfect agreement with the known results.
Article
Physics, Particles & Fields
Junichi Haruna, Katsuta Sakai, Kentaroh Yoshida
Summary: This study focuses on a T (T̄) -deformed O(N) vector model, where the thermal free energy density can be exactly computed using the Burgers equation as a special property of T (T̄) -deformation. The expression obtained is valid for any value of N, and the leading contribution coincides with the exact result in the large N limit, indicating the cancellation of 1/N corrections through a non-trivial mechanism.
Article
Physics, Particles & Fields
Nathan Benjamin, Scott Collier, Jorrit Kruthoff, Herman Verlinde, Mengyang Zhang
Summary: T(T) over bar deformed conformal field theories can be reformulated as worldsheet theories of non-critical strings. We use this correspondence to compute and study the T(T) over bar deformed partition sum of a symmetric product CFT. We find that it takes the form of a partition sum of a second quantized string theory with a worldsheet given by the product of the seed CFT and a gaussian sigma model with the two-torus as target space. We show that deformed symmetric product theory admits a natural UV completion that exhibits a strong weak coupling Z(2) duality that interchanges the momentum and winding numbers and maps the T(T) over bar-coupling lambda to its inverse 1/lambda. The Z(2) duality is part of a full O(2, 2, Z)-duality group that includes a PSL(2, Z) acting on the complexified T(T) over bar coupling. The duality symmetry eliminates the appearance of complex energies at strong coupling for all seed CFTs with central charge c <= 6.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Amit Giveon, Nissan Itzhaki, David Kutasov
Article
Physics, Particles & Fields
Aritra Banerjee, Arpan Bhattacharyya, Soumangsu Chakraborty
Article
Astronomy & Astrophysics
Sreemanti Chakraborti, Victoria Martin, Poulose Poulose
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
(2020)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Subham Dutta Chowdhury, Tushar Gopalka, Suman Kundu, Shiraz Minwalla, Amiya Mishra
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Soumangsu Chakraborty
Summary: This paper demonstrates the equivalence among different string theory descriptions and verifies this equivalence by calculating the spectrum and the two-point correlation function.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Mikhail Goykhman
Summary: The study reveals the equivalence between the interacting critical UV regime of the long-range O(N) vector model with quartic coupling and the critical IR limit of the cubic model coupled to a generalized free field O(N) vector multiplet.
JOURNAL OF HIGH ENERGY PHYSICS
(2021)
Article
Physics, Particles & Fields
Noam Chai, Soumangsu Chakraborty, Mikhail Goykhman, Ritam Sinha
Summary: This study constructs long-range fermionic models with Gross-Neveu and Gross-Neveu-Yukawa interactions, and argues that their critical regimes are equivalent. Various CFT data are calculated in epsilon- and 1/N-expansion, and their agreement is demonstrated in the overlapping regimes of validity.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Akikazu Hashimoto
Summary: We demonstrate that the T (T) over bar deformation of conformal field theories with entropy growth characterized as S(E) similar to E-gamma (for gamma > 1/2) exhibits negative specific heat in its microcanonical thermodynamic function S(epsilon). Taking the large N symmetric product CFT as an example, we analyze and compute the thermodynamic functions such as S(epsilon) and epsilon(T). The negative specific heat observed in the microcanonical data is interpreted as indicating a first-order phase transition when the system is coupled to a heat bath.
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Mikhail Goykhman
Summary: We build a novel time-like coset sigma-model that describes type-II superstring theory in a charged rotating black-brane background. It connects the local AdS(3) in the IR and a linear-dilaton geometry in the UV, allowing for a systematic study of holography in non-AdS backgrounds smoothly connected to AdS(3).
JOURNAL OF HIGH ENERGY PHYSICS
(2022)
Editorial Material
Physics, Particles & Fields
Soumangsu Chakraborty, Amit Giveon, David Kutasov
Summary: This article explores the holographic duality between string theory and single-trace T(T) over bar deformed CFT in backgrounds that interpolate between asymptotically linear dilaton spacetime in the UV and AdS(3) in the IR. In particular, it explains how the deformation of states in the boundary theory is reflected in the bulk geometry, and shows that the maximal coupling is the coupling above which the deformed energy of the SL(2, R) invariant ground state of the IR CFT becomes complex.
JOURNAL OF HIGH ENERGY PHYSICS
(2023)
Article
Astronomy & Astrophysics
Soumangsu Chakraborty, Akikazu Hashimoto
Summary: This study investigates the weighted average of a two-dimensional conformal field theory (CFT) with a T2 target space over its Narain moduli space, and computes the smeared partition function. The weight function inspired by the TT?? deformation turns out to be an exception, leading to a marginal deformation corresponding to the overall rescaling of the T2 target space.
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Amiya Mishra
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Amit Giveon, David Kutasov
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Soumangsu Chakraborty, Amit Giveon, David Kutasov
JOURNAL OF HIGH ENERGY PHYSICS
(2020)
Article
Physics, Particles & Fields
Bogdan Damski
Summary: In this paper, we discuss the dynamics of field configurations in the Proca theory of the real massive vector field, specifically focusing on a certain class of electric (magnetic) dipole-charged states. We construct these states to ensure that the long-distance structure of the mean electromagnetic field is initially set by the formula describing the electromagnetic field of the electric (magnetic) dipole. We analyze the evolution of this mean electromagnetic field over time and observe the phenomena of harmonic oscillations of the electric (magnetic) dipole moment far from the center of the initial field configuration, as well as the emergence of a spherical shock wave propagating at the speed of light near the center. Additionally, we discover a unique axisymmetric mean electric field configuration accompanying the mean magnetic field in magnetic dipole-charged states.
Article
Physics, Particles & Fields
Brett McInnes
Summary: The time-dependence of AdS black hole interior geometries poses challenges to holographic duality and the traversability of wormholes. Quantum circuit complexity of strongly coupled matter can address the first challenge. Data from a phenomenological model show an upper bound on the complexity growth rate, which becomes stricter with the addition of angular momentum. The slowing of black hole interior dynamics at high specific angular momentum also occurs.
Article
Physics, Particles & Fields
M. Beccaria, S. Giombi, A. A. Tseytlin
Summary: This article investigates the superconformal index Z of the 6d (2,0) theory on S5 x S1 and describes it using the quantum M2 brane theory in the large N limit. By studying M2 branes in a twisted product of thermal AdS7 and S4, the leading non-perturbative term at large N is shown to be reproduced by the 1-loop partition function of an instanton M2 brane wrapped on S1 x S2 with S2 c S4. Similarly, the partition function of a defect M2 brane wrapped on thermal AdS3 c AdS7 reproduces the BPS Wilson loop expectation value in the (2,0) theory. The article also comments on the analogy of these results with similar computations in the quantum M2 brane partition function in AdS4 x S7/DOUBLE-STRUCK CAPITAL Zk, which reproduced the corresponding localization expressions in the ABJM 3d gauge theory.
Article
Physics, Particles & Fields
Carlos Silva
Summary: This paper explores the nature of spacetime in quantum gravity based on a new version of the holographic principle that establishes a connection between string theory and polymer holonomy structures. The research findings suggest that, for this relationship to hold, spacetime must be perceived as emerging from a fundamental structure with degrees of freedom corresponding to quantum correlations only.
Article
Physics, Particles & Fields
A. Senol, H. Denizli, C. Helveci
Summary: This study investigates new physics using a Monte Carlo method, and the results show stronger limitations on anomalous quartic gauge couplings compared to previous experiments.
