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The Page curve from the entanglement membrane Page曲线来自缠结膜
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)016
Mike Blake, Anthony P. Thompson
{"title":"The Page curve from the entanglement membrane","authors":"Mike Blake, Anthony P. Thompson","doi":"10.1007/jhep11(2023)016","DOIUrl":"https://doi.org/10.1007/jhep11(2023)016","url":null,"abstract":"A bstract We study entanglement dynamics in toy models of black hole information built out of chaotic many-body quantum systems, by utilising a coarse-grained description of entanglement dynamics in such systems known as the ‘entanglement membrane’. We show that in these models the Page curve associated to the entropy of Hawking radiation arises from a transition in the entanglement membrane around the Page time, in an analogous manner to the change in quantum extremal surfaces that leads to the Page curve in semi-classical gravity. We also use the entanglement membrane prescription to study the Hayden-Preskill protocol, and demonstrate how information initially encoded in the black hole is rapidly transferred to the radiation around the Page time. Our results relate recent developments in black hole information to generic features of entanglement dynamics in chaotic many-body quantum systems.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"9 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RG boundaries and Cardy’s variational ansatz for multiple perturbations 多重扰动的RG边界和Cardy变分分析
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)004
Anatoly Konechny
{"title":"RG boundaries and Cardy’s variational ansatz for multiple perturbations","authors":"Anatoly Konechny","doi":"10.1007/jhep11(2023)004","DOIUrl":"https://doi.org/10.1007/jhep11(2023)004","url":null,"abstract":"A bstract We consider perturbations of 2D CFTs by multiple relevant operators. The massive phases of such perturbations can be labeled by conformal boundary conditions. Cardy’s variational ansatz approximates the vacuum state of the perturbed theory by a smeared conformal boundary state. In this paper we study the limitations and propose generalisations of this ansatz using both analytic and numerical insights based on TCSA. In particular we analyse the stability of Cardy’s ansatz states with respect to boundary relevant perturbations using bulk-boundary OPE coefficients. We show that certain transitions between the massive phases arise from a pair of boundary RG flows. The RG flows start from the conformal boundary on the transition surface and end on those that lie on the two sides of it. As an example we work out the details of the phase diagram for the Ising field theory and for the tricritical Ising model perturbed by the leading thermal and magnetic fields. For the latter we find a pair of novel transition lines that correspond to pairs of RG flows. Although the mass gap remains finite at the transition lines, several one-point functions change their behaviour. We discuss how these lines fit into the standard phase diagram of the tricritical Ising model. We show that each line extends to a two-dimensional surface ξ σ , c in a three coupling space when we add perturbations by the subleading magnetic field. Close to this surface we locate symmetry breaking critical lines leading to the critical Ising model. Near the critical lines we find first order phase transition lines describing two-phase coexistence regions as predicted in Landau theory. The surface ξ σ , c is determined from the CFT data using Cardy’s ansatz and its properties are checked using TCSA numerics.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"154 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135974025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
ALP-LEFT Interference and the Muon (g − 2) ALP-LEFT干涉与μ子(g−2)
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)015
Anne Mareike Galda, Matthias Neubert
{"title":"ALP-LEFT Interference and the Muon (g − 2)","authors":"Anne Mareike Galda, Matthias Neubert","doi":"10.1007/jhep11(2023)015","DOIUrl":"https://doi.org/10.1007/jhep11(2023)015","url":null,"abstract":"A bstract The low-energy effective field theory (LEFT) provides the appropriate framework to describe particle interactions below the scale of electroweak symmetry breaking, μ w ~ v . By matching the Standard Model onto the LEFT, non-zero Wilson coefficients of higher-dimensional operators are generated, suppressed by the corresponding power of 1 /v . An axion or axion-like particle (ALP) with mass m a ≪ μ w that interacts with the Standard Model via classically shift-invariant dimension-five operators would also contribute to the LEFT Wilson coefficients, since it can appear as a virtual particle in divergent Green’s functions and thus has an impact on the renormalization of the LEFT operators. We present the full set of one-loop ALP-induced source terms modifying the renormalization-group evolution equations of the LEFT Wilson coefficients up to dimension-six order. Our framework allows for model-independent ALP searches at low energies from current bounds on LEFT Wilson coefficients. As a concrete application, we present an improved prediction for ALP effects on the anomalous magnetic moment of the muon.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"36 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135974098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scattering amplitudes from dispersive iterations of unitarity 统一性色散迭代的散射振幅
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)005
Piotr Tourkine, Alexander Zhiboedov
{"title":"Scattering amplitudes from dispersive iterations of unitarity","authors":"Piotr Tourkine, Alexander Zhiboedov","doi":"10.1007/jhep11(2023)005","DOIUrl":"https://doi.org/10.1007/jhep11(2023)005","url":null,"abstract":"A bstract We present and numerically implement a computational method to construct relativistic scattering amplitudes that obey analyticity, crossing, elastic and inelastic unitarity in three and four spacetime dimensions. The algorithm is based on the Mandelstam representation of the amplitude and iterations of unitarity. The input for the iterative procedure is given by the multi-particle double spectral density, the S-wave inelasticity, and the value of the amplitude at the crossing-symmetric point. The output, obtained at the fixed point of the iteration of unitarity, is a nonperturbative scattering amplitude. The amplitudes we obtain exhibit interesting features, such as non-zero particle production, intricate high-energy and near the two-particle threshold behavior. Scattering amplitudes obtained by initializing the iteration process with zero (or small) multi-particle input end up close to saturating the S-matrix bounds derived by other methods. There is a version of the iterative algorithm that is directly related to Feynman diagrams: it effectively re-sums infinitely many two-particle reducible planar Feynman graphs in the ϕ 4 theory, which remarkably produces a unitary nonperturbative scattering amplitude function. Finally, we discuss how the algorithm can be further refined by including multi-particle unitarity.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"12 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135874774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
A note on defect Mellin amplitudes 关于缺陷Mellin振幅的说明
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)001
Vasco Goncalves, Georgios Itsios
{"title":"A note on defect Mellin amplitudes","authors":"Vasco Goncalves, Georgios Itsios","doi":"10.1007/jhep11(2023)001","DOIUrl":"https://doi.org/10.1007/jhep11(2023)001","url":null,"abstract":"A bstract We generalize the Mellin representation for a generic co-dimension flat defect CFT. We study the analytic structure of the Mellin amplitudes. We also compute Witten diagrams for a generic co-dimension flat defect CFT.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"9 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135874935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
The chiral condensate of Nf = 2 + 1 QCD from the spectrum of the staggered Dirac operator 交错狄拉克算符谱中Nf = 2 + 1 QCD的手性凝聚
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)013
Claudio Bonanno, Francesco D’Angelo, Massimo D’Elia
{"title":"The chiral condensate of Nf = 2 + 1 QCD from the spectrum of the staggered Dirac operator","authors":"Claudio Bonanno, Francesco D’Angelo, Massimo D’Elia","doi":"10.1007/jhep11(2023)013","DOIUrl":"https://doi.org/10.1007/jhep11(2023)013","url":null,"abstract":"A bstract We compute the chiral condensate of 2 + 1 QCD from the mode number of the staggered Dirac operator, performing controlled extrapolations to both the continuum and the chiral limit. We consider also alternative strategies, based on the quark mass dependence of the topological susceptibility and of the pion mass, and obtain consistent results within errors. Results are also consistent with phenomenological expectations and with previous numerical determinations obtained with different lattice discretizations.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"242 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135974126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Bubbles of cosmology in AdS/CFT AdS/CFT中的宇宙学气泡
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)010
Abhisek Sahu, Petar Simidzija, Mark Van Raamsdonk
{"title":"Bubbles of cosmology in AdS/CFT","authors":"Abhisek Sahu, Petar Simidzija, Mark Van Raamsdonk","doi":"10.1007/jhep11(2023)010","DOIUrl":"https://doi.org/10.1007/jhep11(2023)010","url":null,"abstract":"A bstract Gravitational effective theories associated with holographic CFTs have cosmological solutions, which are typically big-bang/big-crunch cosmologies. These solutions are not asymptotically AdS, so they are not dual to finite-energy states of the CFT. However, we can find solutions with arbitrarily large spherical bubbles of such cosmologies embedded in asymptotically AdS spacetimes where the exterior of the bubble is Schwarzschild-AdS. In this paper, we explore such solutions and their possible CFT dual descriptions. Starting with a cosmological solution with Λ < 0 plus arbitrary matter density, radiation density, and spatial curvature, we show that a comoving bubble of arbitrary size can be embedded in a geometry with AdS-Schwarzschild exterior across a thin-shell domain wall comprised of pressureless matter. We show that in most cases (in particular, for arbitrarily large bubbles with an arbitrarily small negative spatial curvature) the entropy of the black hole exceeds the (radiation) entropy in the cosmological bubble, suggesting that a faithful CFT description is possible. We show that unlike the case of a de Sitter bubble, the Euclidean continuation of these cosmological solutions is sensible and suggests a specific construction of CFT states dual to the cosmological solutions via Euclidean path integral.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"224 S2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135974873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uncovering doubly charged scalars with dominant three-body decays using machine learning 利用机器学习揭示具有显性三体衰变的双带电标量
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)009
Thomas Flacke, Jeong Han Kim, Manuel Kunkel, Pyungwon Ko, Jun Seung Pi, Werner Porod, Leonard Schwarze
{"title":"Uncovering doubly charged scalars with dominant three-body decays using machine learning","authors":"Thomas Flacke, Jeong Han Kim, Manuel Kunkel, Pyungwon Ko, Jun Seung Pi, Werner Porod, Leonard Schwarze","doi":"10.1007/jhep11(2023)009","DOIUrl":"https://doi.org/10.1007/jhep11(2023)009","url":null,"abstract":"A bstract We propose a deep learning-based search strategy for pair production of doubly charged scalars undergoing three-body decays to $$ {W}^{+}toverline{b} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msup> <mml:mi>W</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mi>t</mml:mi> <mml:mover> <mml:mi>b</mml:mi> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> in the same-sign lepton plus multi-jet final state. This process is motivated by composite Higgs models with an underlying fermionic UV theory. We demonstrate that for such busy final states, jet image classification with convolutional neural networks outperforms standard fully connected networks acting on reconstructed kinematic variables. We derive the expected discovery reach and exclusion limit at the high-luminosity LHC.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"8 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135974775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Production and decays of 146 GeV flavons into eμ final state at the LHC 146 GeV黄酮类化合物在大型强子对撞机中的产生和衰变
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)014
Niko Koivunen, Martti Raidal
{"title":"Production and decays of 146 GeV flavons into eμ final state at the LHC","authors":"Niko Koivunen, Martti Raidal","doi":"10.1007/jhep11(2023)014","DOIUrl":"https://doi.org/10.1007/jhep11(2023)014","url":null,"abstract":"A bstract The CMS experiment at CERN has reported a possible signal for a resonance at 146 GeV decaying into the eμ final state which, presently, is the only experimental hint for lepton flavour violation in any low- and high-energy experiment. The Froggatt-Nielsen mechanism naturally predicts the existence of new scalars, the flavons, with flavour off-diagonal couplings. We study this framework in the context of the CMS result and find that the minimal, purely leptophilic model is too restricted to match the claimed signal. Thereafter we show how models with additional flavon couplings to quarks can explain the claimed signal while satisfying all the existing constraints on lepton flavour violation.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135976039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Integrability of $$ mathcal{N} $$ = 1 supersymmetric Ruijsenaars-Schneider three-body system $$ mathcal{N} $$ = 1超对称rujsenaars - schneider三体系统的可积性
1区 物理与天体物理
Journal of High Energy Physics Pub Date : 2023-11-02 DOI: 10.1007/jhep11(2023)008
Anton Galajinsky
{"title":"Integrability of $$ mathcal{N} $$ = 1 supersymmetric Ruijsenaars-Schneider three-body system","authors":"Anton Galajinsky","doi":"10.1007/jhep11(2023)008","DOIUrl":"https://doi.org/10.1007/jhep11(2023)008","url":null,"abstract":"A bstract An $$ mathcal{N} $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mi>N</mml:mi> </mml:math> = 1 supersymmetric extension of the Ruijsenaars-Schneider three-body model is constructed and its integrability is established. In particular, three functionally independent Grassmann-odd constants of the motion are given and their algebraic resolvability is proven. The supersymmetric generalization is used to build a novel integrable isospin extension of the Ruijsenaars-Schneider three-body system.","PeriodicalId":48906,"journal":{"name":"Journal of High Energy Physics","volume":"35 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135973622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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