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We discuss partition function of 2d CFTs decorated by higher qKdV charges in the thermodynamic limit when the size of the spatial circle goes to infinity. In this limit the saddle point approximation is exact and at infinite central charge…

High Energy Physics - Theory · Physics 2020-04-13 Anatoly Dymarsky , Kirill Pavlenko

Two-dimensional CFTs have an infinite set of commuting conserved charges, known as the quantum KdV charges. We study the Generalized Gibbs Ensemble with chemical potentials for these charges at high temperature. In a large central charge…

High Energy Physics - Theory · Physics 2018-11-21 Alexander Maloney , Gim Seng Ng , Simon F. Ross , Ioannis Tsiares

Two dimensional CFTs have an infinite set of commuting conserved charges, known as the quantum KdV charges, built out of the stress tensor. We compute the thermal correlation functions of the these KdV charges on a circle. We show that…

High Energy Physics - Theory · Physics 2019-02-20 Alexander Maloney , Gim Seng Ng , Simon F. Ross , Ioannis Tsiares

Infinite-dimensional conformal symmetry in two dimensions leads to integrability of 2d conformal field theories through an infinite tower of local conserved qKdV charges in involution. We discuss the role this integrable structure plays in…

High Energy Physics - Theory · Physics 2019-09-18 Anatoly Dymarsky , Kirill Pavlenko

The Generalized Gibbs Ensemble (GGE) is relevant to understand the thermalization of quantum systems with an infinite set of conserved charges. In this work, we analyze the GGE partition function of 2D Conformal Field Theories (CFTs) with a…

High Energy Physics - Theory · Physics 2021-06-02 Fábio Novaes

We study 2-point and 3-point functions in CFT at finite temperature for large dimension operators using holography. The 2-point function leads to a universal formula for the holographic free energy in $d$ dimensions in terms of the…

High Energy Physics - Theory · Physics 2021-11-24 D. Rodriguez-Gomez , J. G. Russo

We study the torus partition functions of free bosonic CFTs in two dimensions. Integrating over Narain moduli defines an ensemble-averaged free CFT. We calculate the averaged partition function and show that it can be reinterpreted as a sum…

High Energy Physics - Theory · Physics 2021-02-04 Nima Afkhami-Jeddi , Henry Cohn , Thomas Hartman , Amirhossein Tajdini

With a view towards higher-spin applications, we study the partition function of a free complex fermion in 2d CFT, restricted to the neutral (zero fermion number) sector. This restriction leads to a partial theta function with a…

High Energy Physics - Theory · Physics 2024-04-18 Mbavhalelo Mulokwe , Konstantinos Zoubos

We calculate the partition function for "composite particles". For any finite number of states d, and in the following two cases: 1)all states have the same energy, 2)the energy is linearly distributed over the states, we transform the…

Condensed Matter · Physics 2007-05-23 M. Bergère

We propose a general set of constraints on the partition function of quarter BPS dyons in any N=4 supersymmetric string theory by drawing insight from known examples, and study the consequences of this proposal. The main ingredients of our…

High Energy Physics - Theory · Physics 2009-09-15 Shamik Banerjee , Ashoke Sen , Yogesh K. Srivastava

We present several results concerning the free energy of odd-dimensional conformal field theories (CFTs) on squashed spheres. First, we propose a formula which computes this quantity for holographic CFTs dual to higher-curvature gravities…

High Energy Physics - Theory · Physics 2019-03-05 Pablo Bueno , Pablo A. Cano , Robie A. Hennigar , Robert B. Mann

The partition function of 2d conformal field theory is a modular invariant function. It is known that the partition function of a holomorphic CFT whose central charge is a multiple of 24 is a polynomial in the Klein function. In this paper,…

High Energy Physics - Theory · Physics 2016-10-12 M. Ashrafi , F. Loran

The large $N$ asymptotic expansion of the partition function for the normal matrix model is predicted to have special features inherited from its interpretation as a two-dimensional Coulomb gas. However for the latter, it is most natural to…

Probability · Mathematics 2025-06-18 Matthias Allard , Peter J. Forrester , Sampad Lahiry , Bojian Shen

In this paper, we derive a general formula for the quantized fractional corner charge in two-dimensional C_n-symmetric higher-order topological insulators. We assume that the electronic states can be described by the Wannier functions and…

Mesoscale and Nanoscale Physics · Physics 2021-05-19 Ryo Takahashi , Tiantian Zhang , Shuichi Murakami

In [1] a conjecture for the modular transformation of the free fermion generalised Gibbs ensemble (GGE) was given where only the KdV charge associated to the weight four quasi primary field was inserted. In this paper we first generalise…

High Energy Physics - Theory · Physics 2024-03-11 Max Downing

The partition function for a canonical ensemble of 2D Coulomb charges in a background potential (the Dyson gas) is realized as a vacuum expectation value of a group-like element constructed in terms of free fermionic operators. This…

Mathematical Physics · Physics 2011-02-03 A. Zabrodin

We test the AdS/CFT correspondence by computing the partition function of some $\mathcal{N}=2$ quiver Chern-Simons-matter theories on three-sphere. The M-theory backgrounds are of the Freund-Rubin type with the seven-dimensional internal…

High Energy Physics - Theory · Physics 2017-09-07 Sangmo Cheon , Hyojoong Kim , Nakwoo Kim

We revisit certain aspects of thermalization in 2D CFT. In particular, we consider similarities and differences between the time dependence of correlation functions in various states in rational and non-rational CFTs. We also consider the…

High Energy Physics - Theory · Physics 2017-01-04 Jan de Boer , Dalit Engelhardt

Equilibrium finite temperature observables of a CFT can be described by a local effective action for background fields -- a "thermal effective action." This effective action determines the asymptotic density of states of a CFT as a detailed…

High Energy Physics - Theory · Physics 2024-05-16 Nathan Benjamin , Jaeha Lee , Hirosi Ooguri , David Simmons-Duffin

Since the grand partition function $Z_q$ for the so-called $q$-particles (i.e.,\ quons), $q\in(-1,1)$, cannot be computed by using the standard 2nd quantisation technique involving the full Fock space construction for $q=0$, and its…

Mathematical Physics · Physics 2022-09-14 Fabio Ciolli , Francesco Fidaleo
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