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Quantifying quantum correlations beyond entanglement via robust photon hopping in an optomechanical system 通过光力学系统中鲁棒光子跳变来量化超越纠缠的量子相关
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-11-08 DOI: 10.1142/s0217732323501547
Y. Lahlou, B. Maroufi, M. Daoud
{"title":"Quantifying quantum correlations beyond entanglement via robust photon hopping in an optomechanical system","authors":"Y. Lahlou, B. Maroufi, M. Daoud","doi":"10.1142/s0217732323501547","DOIUrl":"https://doi.org/10.1142/s0217732323501547","url":null,"abstract":"Quantum correlations beyond quantum entanglement represent vital resources in quantum information processing as well as in quantum computation. In fact, both quantum entanglement and quantum correlation are the same when the quantum system is described by pure states. However, this is not exactly the case when general mixed states are considered. In order to clarify this, a simple model has been proposed for the production and quantification of these quantum correlations between two mechanical resonators that are macroscopic in two Fabry–Pérot cavities optomechanical coupled by the photon hopping process. In this model, we analyze and investigate the quantification of the quantum correlation beyond the entanglement between the mechanical modes. We determine the global covariance matrix of the model from which we derive the expression of the entropy of formation ([Formula: see text]) as well as the Gaussian quantum discord ([Formula: see text]), which quantify the amount of quantum entanglement and quantum correlations, respectively. The analysis based on these two quantum correlations quantifiers shows that quantum discord is more appropriate to characterize the quantum correlations between the mechanical modes in an optomechanical quantum system in the presence of robust photon hopping.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Big Rip singularity in f(R,T) gravity with tilted observers 大撕裂奇点在f(R,T)重力倾斜观测者
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-11-08 DOI: 10.1142/s0217732323501468
V. J. Dagwal, D. D. Pawar, Y. S. Solanke
{"title":"Big Rip singularity in f(R,T) gravity with tilted observers","authors":"V. J. Dagwal, D. D. Pawar, Y. S. Solanke","doi":"10.1142/s0217732323501468","DOIUrl":"https://doi.org/10.1142/s0217732323501468","url":null,"abstract":"We have presented the Big Rip singularity in [Formula: see text] gravity with tilt congruences and creation field. We have solved the field equations by considering a conformally flat universe and the condition [Formula: see text], where [Formula: see text] is a constant. The solutions of the field equations have also been investigated by using the method of [J. V. Narlikar and T. Padmanabhan, Phys. Rev. D 32, 1928 (1985)] in which the creation field [Formula: see text] is a function of time [Formula: see text]. Some geometric aspects of the model are also discussed by using MATLAB.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Bit leakage-resistant quantum private magnitude comparison 比特防泄漏量子私有量级比较
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-11-08 DOI: 10.1142/s0217732323501171
Yan-Feng Lang
{"title":"Bit leakage-resistant quantum private magnitude comparison","authors":"Yan-Feng Lang","doi":"10.1142/s0217732323501171","DOIUrl":"https://doi.org/10.1142/s0217732323501171","url":null,"abstract":"Lots of ready quantum private comparison (QPC) protocols usually only judge whether two users’ data are equal, whereas the quantum private magnitude comparison (QPMC) protocol can compare the magnitude of two numbers, whose results are greater than, equal and less than. It is by announcing a comparison result of two bits in two data that the existent QPMC protocols determine the size relationships of the whole data. Although the announcement leaks no information to outside attackers, yet it alerts two participants to know each other’s value of a certain bit. This is termed as bit leakage in this paper. In order to remedy this shortage, the paper proposes a novel QPMC protocol using a type of Bell state. The protocol is thoroughly analyzed, correct and secure. Also, it proves free of bit leakage. Additionally, because it is easier to implement because of the usage of a type of Bell state, it counts as a better alternative for QPMC.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135391511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Comments on “Numerical study of the SWKB condition of novel classes of exactly solvable systems” 对“新一类精确可解系统的SWKB条件的数值研究”的评注
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-11-04 DOI: 10.1142/s0217732323750020
Jonathan Bougie, Asim Gangopadhyaya, Constantin Rasinariu
{"title":"Comments on “Numerical study of the SWKB condition of novel classes of exactly solvable systems”","authors":"Jonathan Bougie, Asim Gangopadhyaya, Constantin Rasinariu","doi":"10.1142/s0217732323750020","DOIUrl":"https://doi.org/10.1142/s0217732323750020","url":null,"abstract":"We comment on the paper ``Numerical study of the SWKB condition of novel classes of exactly solvable systems'' [Y. Nasuda and N. Sawado, Mod. Phys. Lett. A 36, 2150025 (2021)]. We show that it misrepresents our prior work [J. Bougie, A. Gangopadhyaya and C. Rasinariu, J. Phys. A: Math. Theor. 51, 375202 (2018)], and clarify this misunderstanding.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A comment on singular and nonsingular black holes using the Gaussian distribution 用高斯分布对奇异和非奇异黑洞的评论
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-11-04 DOI: 10.1142/s0217732323750032
D. Batic, M. Nowakowski, S. A. Salim
{"title":"A comment on singular and nonsingular black holes using the Gaussian distribution","authors":"D. Batic, M. Nowakowski, S. A. Salim","doi":"10.1142/s0217732323750032","DOIUrl":"https://doi.org/10.1142/s0217732323750032","url":null,"abstract":"In this work, we join the controversial discussion on singular and nonsingular black holes using the Gaussian distribution. Our result which uses correct boundary conditions shifts the debate in favor of regular black holes at the center. The present findings add new insights into the ongoing discussions surrounding singularities in black hole solutions of the Einstein equations.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Distribution dynamics of fisher and Wigner–Yanase information correlations of two qubits coupled to an open superconducting cavity 两个量子比特耦合到开放超导腔的fisher和Wigner-Yanase信息相关的分布动力学
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-11-04 DOI: 10.1142/s0217732323501511
F. M. Aldosari, A.-B. A. Mohamed, A. Rahman, M. Hashem
{"title":"Distribution dynamics of fisher and Wigner–Yanase information correlations of two qubits coupled to an open superconducting cavity","authors":"F. M. Aldosari, A.-B. A. Mohamed, A. Rahman, M. Hashem","doi":"10.1142/s0217732323501511","DOIUrl":"https://doi.org/10.1142/s0217732323501511","url":null,"abstract":"In this paper, we explore distribution dynamics of two-qubit Fisher and skew information correlations of a dissipative microwave cavity field interacting with two charged superconducting qubits. Besides the negativity function, non-classical correlations beyond entanglement are studied using local quantum Fisher information (LQFI) and local quantum uncertainty (LQU). We find that the two-qubit non-classical correlations are sensitive to qubit–qubit distribution angle, two-qubit dissipation parameter, and initial coherent state intensity. The phenomena of frozen quantum correlations, sudden death or birth, as well as revival dynamical maps are feasible in the current two-qubit state when exposed to a microwave cavity. The non-classical correlations and entanglement have been found damped under the two-qubit dissipation appearance in the field. For the increasing strength of coherence intensity of the field, the two-qubit non-classical correlations functions remain to emerge quickly and oscillate with higher frequency, although with the least amplitudes. Interestingly, unlike the non-classical correlations, negativity does not emerge against higher coherence strengths of the cavity and remains completely zero. Finally, for the least dissipation and higher coherence strength, one can readily generate non-classical two-qubit states employing a microwave cavity.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135775861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Investigations on the Ti-induced fusion cross-sections in the range 44≤Z≤104 44≤Z≤104范围内ti诱导熔合截面的研究
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-10-31 DOI: 10.1142/s021773232350147x
L. Reddi Rani, N. Sowmya, H. C. Manjunatha, M. M. Armstrong Arasu
{"title":"Investigations on the Ti-induced fusion cross-sections in the range 44≤Z≤104","authors":"L. Reddi Rani, N. Sowmya, H. C. Manjunatha, M. M. Armstrong Arasu","doi":"10.1142/s021773232350147x","DOIUrl":"https://doi.org/10.1142/s021773232350147x","url":null,"abstract":"As a function of the barrier height, center-of-mass energy, Coulomb interaction parameter and [Formula: see text], a new empirical formula for the astronomical [Formula: see text]-factor has been proposed. Around 14 fusion reactions using [Formula: see text]Ti as projectiles were taken into consideration for various targets, producing compound nuclei with atomic and mass number ranges of [Formula: see text] and [Formula: see text], respectively. The geometric factor, Gamow–Sommerfield factor and empirical [Formula: see text]-factor formulas have been used to determine the fusion cross-sections. Compared to Wong’s formula, this study shows a better agreement with the available experiments except for the [Formula: see text] and [Formula: see text] fusion reactions. When employed to correlate with the experimental data on titanium-induced fusion reactions, this study yields a lower standard deviation value than Wong’s formula except for the fusion reactions leading to the formation of compound nuclei [Formula: see text]Hf and [Formula: see text]Th.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135870999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Determination of Tsallis parameters for K∗(892)± mesons in inelastic pp, pPb and PbPb collisions 非弹性pp, pPb和PbPb碰撞中K *(892)±介子的Tsallis参数测定
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-10-31 DOI: 10.1142/s0217732323501481
Zain Ul Abidin, Uzma Tabassam, Muhammad Ali
{"title":"Determination of Tsallis parameters for K∗(892)± mesons in inelastic pp, pPb and PbPb collisions","authors":"Zain Ul Abidin, Uzma Tabassam, Muhammad Ali","doi":"10.1142/s0217732323501481","DOIUrl":"https://doi.org/10.1142/s0217732323501481","url":null,"abstract":"Doubly differential transverse momentum spectra of strange mesons [Formula: see text] and [Formula: see text] within rapidity interval of [Formula: see text] are studied by using Monte Carlo event generators in pp, pPb and PbPb collisions at different center-of-mass energies. The predictions of simulations are compared to the ALICE data. The fitting of doubly differential transverse momentum spectra of ALICE data is performed by using Tsallis distribution function. To check the quality of the fitting, chemical potential is also set to zero value. The extracted values of the non-extensive parameter ([Formula: see text]), a chemical potential [Formula: see text] and effective Tsallis temperature [Formula: see text] for different particle species have been obtained from the thermodynamically consistent Tsallis distribution function. It is observed that the effective Tsallis temperature increases at different center-of-mass energies. The predictions of the MC event generators, i.e. PYTHIA8 CR and HIJING 2.0 are compared to the ALICE data, deviations are observed which may be due to the reshuffling of parton colors and string fragmentation.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135814046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Static spherically symmetric black holes of Brans–Dicke theory of gravity 静态球对称黑洞的布兰斯-迪克引力理论
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-10-31 DOI: 10.1142/s0217732323501389
David Senjaya
{"title":"Static spherically symmetric black holes of Brans–Dicke theory of gravity","authors":"David Senjaya","doi":"10.1142/s0217732323501389","DOIUrl":"https://doi.org/10.1142/s0217732323501389","url":null,"abstract":"This paper investigates the static spherically symmetric vacuum solutions of Brans–Dicke Theory of Gravity. In this paper, we systematically derive the static spherically symmetric solutions by starting with the general static spherically symmetric anzats, discovering the nonzero Christoffel symbols, nonzero Ricci tensor components and the Ricci Scalar. These results allow us to rewrite the four Brans–Dicke gravitational field equations explicitly in terms of the metric components, the scalar field and its scalar potential. This paper systematically explains and shows how to modify these linear second-order ordinary differential equations in order to be able to find the solution of the scalar field, the metric components and the scalar potential analytically. We successfully find the most general solution of the static spherically symmetric vacuum solutions of Brans–Dicke gravity and the well-known Schwarzschild solution is recovered as the simplest solution.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135870575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
New multiparty measurement-device-independent quantum secret sharing protocol based on entanglement swapping 基于纠缠交换的与多方测量设备无关的新量子秘密共享协议
4区 物理与天体物理
Modern Physics Letters A Pub Date : 2023-10-30 DOI: 10.1142/s0217732323501456
Yu-Guang Yang, Rui-Chen Huang, Guang-Bao Xu, Yi-Hua Zhou, Wei-Min Shi, Dan Li
{"title":"New multiparty measurement-device-independent quantum secret sharing protocol based on entanglement swapping","authors":"Yu-Guang Yang, Rui-Chen Huang, Guang-Bao Xu, Yi-Hua Zhou, Wei-Min Shi, Dan Li","doi":"10.1142/s0217732323501456","DOIUrl":"https://doi.org/10.1142/s0217732323501456","url":null,"abstract":"A new multiparty measurement-device-independent quantum secret sharing (MDI-QSS) protocol is proposed based on entanglement swapping. All the measurement tasks are delegated to an untrusted party, eliminating all detector-side-channel loopholes. Only Einstein–Podolsky–Rosen (EPR) pairs, single photons and Bell-state measurements are required irrespective of the number of participants. Compared with existing MDI-QSS protocols, no additional unitary operations or Greenberger–Horne–Zeilinger (GHZ)-state measurements are needed. Our protocol is feasible experimentally and holds inspiring potential for the application in practical multiparty quantum communication networks.","PeriodicalId":18752,"journal":{"name":"Modern Physics Letters A","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136068770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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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