Annals of Physics最新文献

{"title":"Impact of Tolman–Kuchowicz solution on dark energy compact stars in f(R) theory","authors":"Mariyah Aslam ,&nbsp;Adnan Malik","doi":"10.1016/j.aop.2024.169854","DOIUrl":"10.1016/j.aop.2024.169854","url":null,"abstract":"<div><div>In this study, we model a new relativistic dark energy star by enforcing a static and isotropic spherically symmetric fluid distribution within the framework of <span><math><mrow><mi>f</mi><mrow><mo>(</mo><mi>R</mi><mo>)</mo></mrow></mrow></math></span> gravity, utilizing the Starobinsky model in the field equations. The analysis is conducted using the Tolman–Kuchowicz metric potentials and by employing the equation of state which models dark energy with its density proportional to the isotropic perfect fluid density. By applying junction conditions and considering the Schwarzschild solution as the exterior geometry, we compute the unknown parameters of the constructed model. The physical plausibility of the model is thoroughly examined, ensuring the regularity and consistency of metric functions and matter variables. We analyze energy conditions to confirm the system’s physical realism and derive the mass–radius relationship along with gravitational redshift, providing significant insights into the structure of the compact star candidate 4U 1820-30. The hydrostatic equilibrium is evaluated using the TOV equation, while stability is determined through the causality condition and adiabatic index. The results demonstrate that the proposed model, for the chosen values of the model parameter, is physically consistent and satisfies all necessary stability criteria, providing a viable and realistic description of a compact stellar structure influenced by dark energy.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169854"},"PeriodicalIF":3.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Study of asymptotic free scalar field theories from adaptive perturbation method","authors":"Chen-Te Ma ,&nbsp;Hui Zhuang","doi":"10.1016/j.aop.2024.169856","DOIUrl":"10.1016/j.aop.2024.169856","url":null,"abstract":"<div><div>We focus on the behavior of (2+1)d <span><math><mrow><mi>λ</mi><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>4</mn></mrow></msup></mrow></math></span> and (5+1)d <span><math><mrow><mi>λ</mi><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> or <span><math><mrow><mi>λ</mi><mo>|</mo><mi>ϕ</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> theories in different regimes and compare the results obtained from the adaptive perturbation method with those obtained from lattice simulation. These theories are simple models that exhibit asymptotic freedom, which is a property that is also observed in more complex theories such as QCD, which describes the strong interaction between quarks and gluons. Asymptotic freedom is an important feature of these theories because it allows for a perturbative treatment of interactions at high energies. However, the standard perturbation scheme breaks down in the presence of strong interactions, and the adaptive perturbation method, which involves resuming the Feynman diagrams, is more suitable for studying these interactions. Our research involves comparing the perturbation result to lattice simulation. In the case of the <span><math><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>3</mn></mrow></msup></math></span> theory, there is no stable vacuum, so we explore evidence from the <span><math><mrow><mo>|</mo><mi>ϕ</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> theory instead. Our results appear to show that resummation improves the strong coupling result for both the <span><math><mrow><mi>λ</mi><msup><mrow><mi>ϕ</mi></mrow><mrow><mn>4</mn></mrow></msup></mrow></math></span> and <span><math><mrow><mi>λ</mi><mo>|</mo><mi>ϕ</mi><msup><mrow><mo>|</mo></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span> theories. Additionally, we improve the resummation method for the three-point coupling vertex and study the RG flow to analyze the resummation contribution and theoretical properties.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169856"},"PeriodicalIF":3.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Photonic properties of 1D multilayered structures based on quasiperiodic Rudin–Shapiro sequence","authors":"Marco A. Tun-Carrillo ,&nbsp;Miguel E. Mora-Ramos ,&nbsp;Hernán A. Gómez-Urrea ,&nbsp;Ignacio V. Pérez-Quintana","doi":"10.1016/j.aop.2024.169860","DOIUrl":"10.1016/j.aop.2024.169860","url":null,"abstract":"<div><div>A theoretical study of some properties of light propagation in Rudin–Shapiro one-dimensional photonic heterostructures is presented. Particular attention is paid to hybrid periodic–quasiperiodic–periodic systems that include the Rudin–Shapiro sequence design in the non-periodic regions. Features such as omnidirectional reflection, spatial mode localization and full photonic band gap are discussed for different cases. The calculation tool employed is the transfer matrix/scattering matrix technique. The proposed hybrid heterostructure then are used as unitary cells of a photonic crystal which shows wide omnidirectional full gaps in the infrared regions of work. In some of the structures investigated, the proposal involves different pattern of dielectric contrast appears for the periodic part and for the quasiperiodic part.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169860"},"PeriodicalIF":3.0,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Probing the solar system for dark matter using the Sagnac effect","authors":"A.D.S. Souza ,&nbsp;C.R. Muniz ,&nbsp;R.M.P. Neves ,&nbsp;M.B. Cruz","doi":"10.1016/j.aop.2024.169859","DOIUrl":"10.1016/j.aop.2024.169859","url":null,"abstract":"<div><div>This study investigates the potential of the Sagnac Effect for detecting dark matter in the Solar System, particularly within the Sun. Originating from the relative delay and interference of light beams traveling in opposite directions on rotating platforms, the effect can account for how varying gravitational conditions affect its manifestation. We analyze the Sagnac time in two static, spherically symmetric spacetimes: Schwarzschild and one incorporating dark matter, in the form of a perfect fluid. Comparing the relative deviations in Sagnac time calculated for these metrics in the reference frame of satellites orbiting our star, which serve as a rotating circular platform and emit laser beams in opposite directions, with the precision of onboard atomic clocks (about <span><math><mrow><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>11</mn></mrow></msup></mrow></math></span>), allows us to evaluate the potential for detecting dark matter’s gravitational influence through this effect.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169859"},"PeriodicalIF":3.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Lorentz covariant physical Brownian motion: Classical and quantum","authors":"Henryk Gzyl","doi":"10.1016/j.aop.2024.169857","DOIUrl":"10.1016/j.aop.2024.169857","url":null,"abstract":"<div><div>In this work, we re-examine the Goldstein-Kaç (also called Poisson-Kaç) velocity switching model from two points of view. On the one hand, we prove that the forward and backward Chapman–Kolmogorov equations of the stochastic process are Lorentz covariant when the trajectories are parameterized by their proper time. On the other hand, to recast the model as a quantum random evolution, we restate the Goldstein-Kaç model as a Hamiltonian system, which can then be quantized using the standard correspondence rules. It turns out that the density matrix for the random quantum evolution satisfies a Chapman–Kolmogorov equation similar to that of the classical case, and therefore, it is also Lorentz covariant. To finish, we verify that the quantum model is also consistent with special relativity and that transitions outside the light cone, that is, transitions between states with disjoint supports in space–time, cannot occur.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169857"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700800","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Sagnac effect and quantum Hall effect in rotating GaAs/Ga1−xAlxAs systems","authors":"Cleverson Filgueiras ,&nbsp;Moises Rojas ,&nbsp;Denise Assafrão ,&nbsp;A.G. de Lima","doi":"10.1016/j.aop.2024.169858","DOIUrl":"10.1016/j.aop.2024.169858","url":null,"abstract":"<div><div>This study investigates the intricate interplay between inertial effects and the quantum Hall effect (QHE) in two-dimensional electron systems (2DEGs), specifically in a <span><math><mrow><mi>G</mi><mi>a</mi><mi>A</mi><mi>s</mi><mo>/</mo><mi>G</mi><msub><mrow><mi>a</mi></mrow><mrow><mn>1</mn><mo>−</mo><mi>x</mi></mrow></msub><mi>A</mi><msub><mrow><mi>l</mi></mrow><mrow><mi>x</mi></mrow></msub><mi>A</mi><mi>s</mi></mrow></math></span> system. We analyze how hydrostatic pressure, temperature, and aluminum concentration influence the effective electronic mass and consequently modify the energy levels of the system. A key aspect of our work is the distinction between effective mass and gravitational mass, which plays a crucial role in the behavior of electrons under inertial forces. The Hamiltonian incorporates the Sagnac effect, revealing distinct behaviors in the energy structure of a rotating 2DEG under a perpendicular magnetic field. Our results demonstrate that rotational motion breaks the degeneracy of Landau levels, resulting in a complex energy spectrum that significantly impacts Hall conductivity. We show that the Hall conductivity is enhanced by the rotational motion and is sensitive to variations in the effective mass due to changes in aluminum concentration and pressure. These findings provide crucial insights into the dynamics of 2DEGs in rotating frames and highlight the need to account for inertial effects in future theoretical and experimental studies of quantum systems.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169858"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Chiral Virasoro algebra from a single wavefunction","authors":"Isaac H. Kim ,&nbsp;Xiang Li ,&nbsp;Ting-Chun Lin ,&nbsp;John McGreevy ,&nbsp;Bowen Shi","doi":"10.1016/j.aop.2024.169849","DOIUrl":"10.1016/j.aop.2024.169849","url":null,"abstract":"<div><div>Chiral edges of 2+1D systems can have very robust emergent conformal symmetry. When the edge is purely chiral, the Hilbert space of low-energy edge excitations can form a representation of a single Virasoro algebra. We propose a method to systematically extract the generators of the Virasoro algebra from a single ground state wavefunction, using entanglement bootstrap and an input from the edge conformal field theory. We corroborate our construction by numerically verifying the commutation relations of the generators. We also study the unitary flows generated by these operators, whose properties (such as energy and state overlap) are shown numerically to agree with our analytical predictions.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"471 ","pages":"Article 169849"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142704768","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}

{"title":"On Hamiltonian formulations of the Dirac system","authors":"Bence Juhász ,&nbsp;László Árpád Gergely","doi":"10.1016/j.aop.2024.169855","DOIUrl":"10.1016/j.aop.2024.169855","url":null,"abstract":"<div><div>We extend a previously successful discussion of the constrained Schrödinger system through the Dirac–Bergmann algorithm to the case of the Dirac field. In order to follow the analogy, first we discuss the classical Dirac field as a spinorial variable, by introducing properly defined momenta and a suitably modified, factor ordered Poisson bracket. According to the Dirac–Bergmann algorithm two second class Hamiltonian constraints emerge, leading to a factor ordered Dirac bracket on the full phase space. This becomes the Poisson bracket on the reduced phase space in the canonical chart adapted to the shell. The Dirac equation is recovered both as consistency condition on the full phase space and as canonical equation on the reduced phase space. Alternatively, considering the Dirac field as odd Grassmann variable, we present the details of the Dirac–Bergmann algorithm (with either left and right derivatives acting on Grassmann valued superfunctions and involving a different type of generalized Poisson and Dirac brackets). We propose a recipe for the canonical second quantization of all three versions of the generalized Dirac brackets, yielding the correct fundamental anticommutator.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"472 ","pages":"Article 169855"},"PeriodicalIF":3.0,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142700804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Fermionic dynamical Casimir effect: Magnus expansion","authors":"C.D. Fosco,&nbsp;G. Hansen","doi":"10.1016/j.aop.2024.169841","DOIUrl":"10.1016/j.aop.2024.169841","url":null,"abstract":"<div><div>We study pair creation out of the vacuum, for a system consisting of a massive Dirac field in <span><math><mrow><mn>1</mn><mo>+</mo><mn>1</mn></mrow></math></span> dimensions, contained between a pair of perfectly reflecting boundaries, one of them oscillating. After analyzing some general properties of the vacuum-decay process, we evaluate the corresponding transition amplitude in a Magnus expansion of the <span><math><mi>S</mi></math></span>-matrix. We show how this yields, besides the single-pair creation amplitude, multipair ones, as well as corrections to the single pair amplitude.</div><div>We also apply it to obtain an approximate, yet explicitly unitary expression for the Bogoliubov transformation between the <em>in</em> and <em>out</em> Fock spaces.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"471 ","pages":"Article 169841"},"PeriodicalIF":3.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Josephson effect of massive pseudospin-1 fermions in the ferromagnetic dice lattice","authors":"Zixuan Ding ,&nbsp;Donghao Wang ,&nbsp;Liangliang Lu ,&nbsp;Mengyao Li ,&nbsp;Yongchun Tao ,&nbsp;Fengliang Huang","doi":"10.1016/j.aop.2024.169848","DOIUrl":"10.1016/j.aop.2024.169848","url":null,"abstract":"<div><div>We theoretically study the Josephson effect of massive pseudospin-1 fermions in a superconductor/ferromagnet/superconductor (S/F/S) junction based on the dice lattice, including <span><math><msub><mrow><mi>S</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>- and <span><math><mrow><mo>+</mo><mi>U</mi></mrow></math></span>-type mass terms with the magnitude <span><math><mi>m</mi></math></span>. For the <span><math><msub><mrow><mi>S</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>-type fermions, it is found that, in the absence of ferromagnetic exchange field <span><math><mi>h</mi></math></span>, the supercurrent is effectively inhibited by <span><math><mi>m</mi></math></span> or the junction length <span><math><mi>L</mi></math></span>. In the presence of <span><math><mi>h</mi></math></span>, <span><math><mrow><mn>0</mn><mo>−</mo><mi>π</mi></mrow></math></span> state transition can be realized by modulating <span><math><mi>h</mi></math></span>, <span><math><mi>m</mi></math></span>, or <span><math><mi>L</mi></math></span>. The <span><math><mi>m</mi></math></span>-induced state transition occurs more frequently for a larger <span><math><mi>h</mi></math></span> or <span><math><mi>L</mi></math></span>. Particularly, the inhibition of supercurrent caused by <span><math><mi>m</mi></math></span> still remains for a large <span><math><mi>m</mi></math></span>. In the doping case, corresponding to a nonzero <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>F</mi></mrow></msub></math></span>, the <span><math><mi>m</mi></math></span>-induced state transition may disappear for a large <span><math><mi>h</mi></math></span> or <span><math><mi>L</mi></math></span>. With <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>F</mi></mrow></msub></math></span> increased, the inhibition caused by <span><math><mi>m</mi></math></span> diminishes for a small <span><math><mi>h</mi></math></span> whereas intensifies for a large <span><math><mi>h</mi></math></span>. In addition, the supercurrent features for the <span><math><mrow><mo>+</mo><mi>U</mi></mrow></math></span>-type fermions distinct from those for the <span><math><msub><mrow><mi>S</mi></mrow><mrow><mi>z</mi></mrow></msub></math></span>-type fermions are demonstrated.</div></div>","PeriodicalId":8249,"journal":{"name":"Annals of Physics","volume":"471 ","pages":"Article 169848"},"PeriodicalIF":3.0,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651361","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}