2022
DOI: 10.1007/jhep09(2022)051
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Multi-charged moments of two intervals in conformal field theory

Abstract: We study the multi-charged moments for two disjoint intervals in the ground state of two 1 + 1 dimensional CFTs with central charge c = 1 and global U(1) symmetry: the massless Dirac field theory and the compact boson (Luttinger liquid). For this purpose, we compute the partition function on the higher genus Riemann surface arising from the replica method in the presence of background magnetic fluxes between the sheets of the surface. We consider the general situation in which the fluxes generate different twi… Show more

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Cited by 24 publications
(24 citation statements)
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“…These expressions are however simplified to algebraic functions of interval lengths and distances using the conjectures made in eq.(4.36)-(4.39). Similar conjectures were first made in [36] for the two disjoint intervals case. The symmetry resolved Rényi entropy was then obtained by evaluating the Fourier transform of the charged moments.…”
Section: Discussionsupporting
confidence: 79%
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“…These expressions are however simplified to algebraic functions of interval lengths and distances using the conjectures made in eq.(4.36)-(4.39). Similar conjectures were first made in [36] for the two disjoint intervals case. The symmetry resolved Rényi entropy was then obtained by evaluating the Fourier transform of the charged moments.…”
Section: Discussionsupporting
confidence: 79%
“…The multi-charged moments of free compact boson in two disjoint intervals case for Rényi entropy was first obtained in [36], these moments were then used to study the symmetry resolved Rényi entropy and mutual information. In [52], these quantities were obtained for Rényi negativity to study the symmetry-resolved Rényi negativity in the same settings.…”
Section: Multi-charged Momentsmentioning
confidence: 99%
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“…The basic tool to investigate how entanglement distributes among symmetry sectors is the symmetry-resolved entanglement entropy [35][36][37], which provides a finer measure of the entanglement content in extended systems that is not accessible from the total entanglement entropy. This fact has currently triggered an intense research activity on the interplay between symmetries and entanglement in very different systems, including spin chains [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52], integrable [53][54][55][56][57][58][59][60][61] and conformal field theories [36,37,[62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77], and involving diverse contexts su...…”
Section: Introductionmentioning
confidence: 99%