Nuclear Physics B最新文献_第10页

Quantum gravitational corrections to the geometry of charged AdS black holes

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-06 DOI: 10.1016/j.nuclphysb.2025.116830

Behnam Pourhassan , Ruben Campos Delgado , Sudhaker Upadhyay , Hoda Farahani , Himanshu Kumar

引用次数: 0

Quantum dynamics of the effective field theory of the Calogero-Sutherland model

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-06 DOI: 10.1016/j.nuclphysb.2025.116825

Federico L. Bottesi , Guillermo R. Zemba

{"title":"Quantum dynamics of the effective field theory of the Calogero-Sutherland model","authors":"Federico L. Bottesi , Guillermo R. Zemba","doi":"10.1016/j.nuclphysb.2025.116825","DOIUrl":"10.1016/j.nuclphysb.2025.116825","url":null,"abstract":"<div><div>We consider the known effective field theory of the Calogero-Sutherland model in the thermodynamic limit of large number of particles, obtained from the standard procedure in conformal field theory: the Hilbert space is constructed <em>a priori</em> in terms of irreducible representations of the symmetry algebra, and not by diagonalization of the hamiltonian, which is given in terms of fields that carry representations of the <span><math><msub><mrow><mi>W</mi></mrow><mrow><mn>1</mn><mo>+</mo><mo>∞</mo></mrow></msub></math></span> algebra (representing the incompressibility of the Fermi sea). Nevertheless, the role of the effective hamiltonian of the theory is to establish a specific dynamics, which deserves further consideration. We show that the time evolution of the (chiral or antichiral) density field is given by the quantum Benjamin-Ono equation, in agreement with previous results obtained from the alternative description of the continuous limit of the model, based on quantum hydrodynamics. In this study, all calculations are performed at the quantum operator level, without making any assumption on the semiclassical limit of the fields and their equations of motion. This result may be considered as a reliable indication of the equivalence between the quantum field theoretic and quantum hydrodynamical formulations of the effective theories of the model. A one-dimensional quantum compressible fluid that includes both chiralities is the physical picture that emerges for the continuous limit of the Calogero-Sutherland model.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116825"},"PeriodicalIF":2.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Toda-Weyl mass spectrum

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-06 DOI: 10.1016/j.nuclphysb.2025.116823

Martin T. Luu

引用次数: 0

Topological 1D gravity, KP hierarchy, and orbifold Euler characteristics of M‾g,n

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-06 DOI: 10.1016/j.nuclphysb.2025.116822

Zhiyuan Wang , Jian Zhou

引用次数: 0

Relativistic model of an anisotropic star with Bose-Einstein dark matter density profile in f(T) gravity

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-06 DOI: 10.1016/j.nuclphysb.2025.116819

Samprity Das , Prabir Rudra , Surajit Chattopadhyay

{"title":"Relativistic model of an anisotropic star with Bose-Einstein dark matter density profile in f(T) gravity","authors":"Samprity Das , Prabir Rudra , Surajit Chattopadhyay","doi":"10.1016/j.nuclphysb.2025.116819","DOIUrl":"10.1016/j.nuclphysb.2025.116819","url":null,"abstract":"<div><div>This article presents a new model for anisotropic compact stars that are confined to physical dark matter in the background of <span><math><mi>f</mi><mo>(</mo><mi>T</mi><mo>)</mo></math></span> teleparallel gravity. The model is based on the equation of state (EoS) of the bag model type and the Bose-Einstein dark matter density profile. The derived solutions meet the energy conditions, the causality conditions, and the required conditions on the stability factor and adiabatic index, indicating that they are physically well-behaved and represent the physical and stable matter configuration. We also determine the maximum mass, surface redshift, and compactness parameter at the surface. Interestingly, all of these numbers fall within the specified range, supporting the physical viability of our proposal. Additionally, the various masses that are derived for varying the model parameter <em>k</em> correspond to five compact, realistic compact objects, including LMC X-4, Her X-1, 4U 1538-52, SAX J1808.4-3658, and Cen X-3. We have also illustrated the radially symmetric profiles of energy density and the moment of inertia for non-rotating stars.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116819"},"PeriodicalIF":2.5,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Non-Abelian elastic collisions, associated difference systems of equations and discrete analytic functions

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-06 DOI: 10.1016/j.nuclphysb.2025.116824

Pavlos Kassotakis , Theodoros Kouloukas , Maciej Nieszporski

引用次数: 0

KG-oscillators in Eddington-inspired Born-Infeld gravity: Wu-Yang magnetic monopole and Ricci scalar curvature effects

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-05 DOI: 10.1016/j.nuclphysb.2025.116827

Omar Mustafa

{"title":"KG-oscillators in Eddington-inspired Born-Infeld gravity: Wu-Yang magnetic monopole and Ricci scalar curvature effects","authors":"Omar Mustafa","doi":"10.1016/j.nuclphysb.2025.116827","DOIUrl":"10.1016/j.nuclphysb.2025.116827","url":null,"abstract":"<div><div>We investigate the Klein-Gordon (KG) oscillators in a global monopole (GM) spacetime in Eddington-inspired Born-Infeld (EiBI) gravity and a Wu-Yang magnetic monopole (WYMM). We discuss the gravitational effects in the presence of Ricci scalar curvature <span><math><mi>R</mi><mo>=</mo><msubsup><mrow><mi>R</mi></mrow><mrow><mi>υ</mi></mrow><mrow><mi>υ</mi></mrow></msubsup></math></span>. It is observed that the presence of the Ricci scalar curvature, effectively and manifestly, introduces a force field that makes the corresponding quantum mechanical repulsive core more repulsive. Similar effect is also observed for the EiBI-gravitational field. We reiterate and report that the corresponding bosonic KG-oscillator quantum mechanical system admits a solution in the form of confluent Heun functions, the truncation of which into a physically admissible polynomial is shown to be associated with some parametric correlations/conditions. The use of such conditions/correlations is mandatory and yields a set of allowed/restricted quantum mechanical orbital <em>ℓ</em>-excitations, for all radial quantum numbers <span><math><msub><mrow><mi>n</mi></mrow><mrow><mi>r</mi></mrow></msub><mo>≥</mo><mn>0</mn></math></span>. Our procedure is shown to be quite handy, in the sense that it allows one to retrieve results for KG-oscillators in GM-spacetime in different EiBI-gravity and Ricci scalar curvature settings.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116827"},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143242259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The super BKP hierarchy from Clifford super module

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-05 DOI: 10.1016/j.nuclphysb.2025.116826

Huizhan Chen

引用次数: 0

Macroscopic neutrinoless double beta decay: Long range quantum coherence

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-05 DOI: 10.1016/j.nuclphysb.2025.116829

Gordon Baym, Jen-Chieh Peng

{"title":"Macroscopic neutrinoless double beta decay: Long range quantum coherence","authors":"Gordon Baym, Jen-Chieh Peng","doi":"10.1016/j.nuclphysb.2025.116829","DOIUrl":"10.1016/j.nuclphysb.2025.116829","url":null,"abstract":"<div><div>We re-introduce, in light of our modern understanding of neutrinos, the concept of “macroscopic neutrinoless double beta decay” (MDBD) for Majorana neutrinos. In this process an antineutrino produced by a nucleus undergoing beta decay, <span><math><mi>X</mi><mo>→</mo><mi>Y</mi><mo>+</mo><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo></mrow></msup><mo>+</mo><msub><mrow><mover><mrow><mi>ν</mi></mrow><mrow><mo>¯</mo></mrow></mover></mrow><mrow><mi>e</mi></mrow></msub></math></span>, is absorbed as a neutrino by another identical <em>X</em> nucleus via the inverse beta decay reaction, <span><math><msub><mrow><mi>ν</mi></mrow><mrow><mi>e</mi></mrow></msub><mo>+</mo><mi>X</mi><mo>→</mo><msup><mrow><mi>e</mi></mrow><mrow><mo>−</mo></mrow></msup><mo>+</mo><mi>Y</mi></math></span>. The distinct signature of MDBD is that the total kinetic energy of the two electrons equals twice the endpoint energy of single beta decay. The amplitude for MDBD, a coherent sum over the contribution of different mass states of the intermediate neutrinos, reflects quantum coherence over macroscopic distances, and is a new macroscopic quantum effect. We evaluate the rate of MDBD for a macroscopic sample of “<em>X</em>” material, e.g., tritium, acting both as the source and the target. The accidental background for MDBD originating from two separate single beta decays, which contains two final state neutrinos, can be readily rejected by measuring the energy of the detected two electrons. We discuss the similarities and differences between the MDBD and conventional neutrinoless double beta decay. While MDBD is clearly not a viable replacement for traditional 0<em>ν</em>DBD experiments, analysis of the concept of MDBD offers new perspectives on the physics of neutrinoless double beta decays.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116829"},"PeriodicalIF":2.5,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143242452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hamiltonian simulation of minimal holographic sparsified SYK model

IF 2.5 3区物理与天体物理

Nuclear Physics B Pub Date : 2025-02-04 DOI: 10.1016/j.nuclphysb.2025.116815

Raghav G. Jha

{"title":"Hamiltonian simulation of minimal holographic sparsified SYK model","authors":"Raghav G. Jha","doi":"10.1016/j.nuclphysb.2025.116815","DOIUrl":"10.1016/j.nuclphysb.2025.116815","url":null,"abstract":"<div><div>The circuit complexity for Hamiltonian simulation of the sparsified SYK model with <em>N</em> Majorana fermions and <span><math><mi>q</mi><mo>=</mo><mn>4</mn></math></span> (quartic interactions), which retains holographic features (referred to as ‘minimal holographic sparsified SYK’) with <span><math><mi>k</mi><mo>≪</mo><msup><mrow><mi>N</mi></mrow><mrow><mn>3</mn></mrow></msup><mo>/</mo><mn>24</mn></math></span> (where <em>k</em> is the total number of interaction terms times 1/<em>N</em>) using the second-order Trotter method and Jordan-Wigner encoding is found to be <span><math><mover><mrow><mi>O</mi></mrow><mrow><mo>˜</mo></mrow></mover><mo>(</mo><msup><mrow><mi>k</mi></mrow><mrow><mi>α</mi></mrow></msup><msup><mrow><mi>N</mi></mrow><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msup><mi>log</mi><mo>⁡</mo><mi>N</mi><msup><mrow><mo>(</mo><mi>J</mi><mi>t</mi><mo>)</mo></mrow><mrow><mn>3</mn><mo>/</mo><mn>2</mn></mrow></msup><msup><mrow><mi>ε</mi></mrow><mrow><mo>−</mo><mn>1</mn><mo>/</mo><mn>2</mn></mrow></msup><mo>)</mo></math></span> where <em>t</em> is the simulation time, <em>ε</em> is the desired error in the implementation of the unitary <span><math><mi>U</mi><mo>=</mo><mi>exp</mi><mo>⁡</mo><mo>(</mo><mo>−</mo><mi>i</mi><mi>H</mi><mi>t</mi><mo>)</mo></math></span> measured by the operator norm, <span><math><mi>J</mi></math></span> is the disorder strength, and constant <span><math><mi>α</mi><mo><</mo><mn>1</mn></math></span>. This complexity implies that with less than a hundred logical qubits and about 10<sup>6</sup> gates, it might be possible to achieve an advantage in this model and simulate real-time dynamics.</div></div>","PeriodicalId":54712,"journal":{"name":"Nuclear Physics B","volume":"1012 ","pages":"Article 116815"},"PeriodicalIF":2.5,"publicationDate":"2025-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143242258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0