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Quasinormal Modes of the (2+1)-dimensional Chern-Simons Black Hole via Symmetry (2+1)维chen - simons黑洞的对称拟正态
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430091
V. Avramov, R. C. Rashkov, T. Vetsov
{"title":"Quasinormal Modes of the (2+1)-dimensional Chern-Simons Black Hole via Symmetry","authors":"V. Avramov, R. C. Rashkov, T. Vetsov","doi":"10.1142/s0217751x23430091","DOIUrl":"https://doi.org/10.1142/s0217751x23430091","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854588","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
Tachyon constant-roll inflation in Randall-Sundrum II cosmology Randall-Sundrum II宇宙学中的速子恒滚膨胀
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430030
Marko Stojanovic, Neven Bilic, Dragoljub D. Dimitrijevic, Goran S. Djordjevic, Milan Milosevic
{"title":"Tachyon constant-roll inflation in Randall-Sundrum II cosmology","authors":"Marko Stojanovic, Neven Bilic, Dragoljub D. Dimitrijevic, Goran S. Djordjevic, Milan Milosevic","doi":"10.1142/s0217751x23430030","DOIUrl":"https://doi.org/10.1142/s0217751x23430030","url":null,"abstract":"We study inflation in a model with constant second slow-roll parameter $eta$. In this case, the Hubble expansion rate equation has analytical solutions describing four possible, nontrivial inflation scenarios. The evolution of the inflaton governed by a tachyon field is studied in the framework of the standard and Randall-Sundrum II cosmology. The attractor behavior of the solution is briefly demonstrated. Finally, the calculated values of the parameters $n_{rm s}$ and $r$ are compared with observational data.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918911","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
Phase transitions in a Φ4 matrix model on a curved noncommutative space 弯曲非交换空间上Φ4矩阵模型的相变
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430029
Dragan Prekrat, Dragana Rankovic, Neli Kristina Todorovic-Vasovic, Samuel Kovacik, Juraj Tekel
{"title":"Phase transitions in a Φ<sup>4</sup> matrix model on a curved noncommutative space","authors":"Dragan Prekrat, Dragana Rankovic, Neli Kristina Todorovic-Vasovic, Samuel Kovacik, Juraj Tekel","doi":"10.1142/s0217751x23430029","DOIUrl":"https://doi.org/10.1142/s0217751x23430029","url":null,"abstract":"In this contribution, we summarize our recent studies of the phase structure of the Grosse-Wulkenhaar model and its connection to renormalizability. Its action contains a special term that couples the field to the curvature of the noncommutative background space. We first analyze the numerically obtained phase diagram of the model and its three phases: the ordered, the disordered, and the noncommutative stripe phase. Afterward, we discuss the analytical derivation of the effective action and the ordered-to-stripe transition line, and how the obtained expression successfully explains the curvature-induced shift of the triple point compared to the model without curvature. This shift also causes the removal of the stripe phase and makes the model renormalizable.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918912","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
CFT thermal 2-point function CFT热两点函数
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430054
Borut Bajc, Adrian Lugo
{"title":"CFT thermal 2-point function","authors":"Borut Bajc, Adrian Lugo","doi":"10.1142/s0217751x23430054","DOIUrl":"https://doi.org/10.1142/s0217751x23430054","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135853585","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
KS0 Production In P+P Interactions Measured by NA61/SHINE 用NA61/SHINE测定P+P相互作用中KS0的产生
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430066
Marjan Cirkovic, None For the NA61/SHINE Collaboration
{"title":"KS0 Production In <i>P</i>+<i>P</i> Interactions Measured by NA61/SHINE","authors":"Marjan Cirkovic, None For the NA61/SHINE Collaboration","doi":"10.1142/s0217751x23430066","DOIUrl":"https://doi.org/10.1142/s0217751x23430066","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918915","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
Studying on failure compensation in low energy region of superconducting cavity in CAFe2 CAFe2超导腔低能区失效补偿研究
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23501555
Yongzhi Jia, Xiaolong Chen, Jiaosai Li, Kunxiang Sun, Zhijun Wang, Xin Qi, Yuan He
{"title":"Studying on failure compensation in low energy region of superconducting cavity in CAFe2","authors":"Yongzhi Jia, Xiaolong Chen, Jiaosai Li, Kunxiang Sun, Zhijun Wang, Xin Qi, Yuan He","doi":"10.1142/s0217751x23501555","DOIUrl":"https://doi.org/10.1142/s0217751x23501555","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918919","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
Natural observables and dynamical approximations in multifield cosmological models 多场宇宙学模型中的自然观测和动力学近似
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430078
C. I. Lazaroiu
{"title":"Natural observables and dynamical approximations in multifield cosmological models","authors":"C. I. Lazaroiu","doi":"10.1142/s0217751x23430078","DOIUrl":"https://doi.org/10.1142/s0217751x23430078","url":null,"abstract":"I give a geometric construction of certain first order natural dynamical observables in multifield cosmological models with arbitrary target space topology and discuss a system of related dynamical approximations and regimes for such models.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918913","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
Nearly Static Magnetized Kerr Black-hole in Non-linear Electrodynamics 非线性电动力学中的近静态磁化Kerr黑洞
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x2350152x
K. G. Managave, H. A. Redekar, R. B. Kumbhar, S. P. Das, K. Y. Rajpure
{"title":"Nearly Static Magnetized Kerr Black-hole in Non-linear Electrodynamics","authors":"K. G. Managave, H. A. Redekar, R. B. Kumbhar, S. P. Das, K. Y. Rajpure","doi":"10.1142/s0217751x2350152x","DOIUrl":"https://doi.org/10.1142/s0217751x2350152x","url":null,"abstract":"We have analyzed the thermodynamics of slowly rotating magnetized Kerr black-hole, with typical spin parameter $ale 0.1$ (nearly static) in the background of non-linear electrodynamics. In particular we have studied the Bekenstein-Hawking entropy, Hawking temperature, angular momentum, specific heats and identified regions of parameters for possible phase-transitions. It turns out that once the stability lost the black-hole never come back to its original stable position.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854759","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 fuzzy black hole 模糊黑洞
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430017
Ilija Buric, Maja Buric
{"title":"A fuzzy black hole","authors":"Ilija Buric, Maja Buric","doi":"10.1142/s0217751x23430017","DOIUrl":"https://doi.org/10.1142/s0217751x23430017","url":null,"abstract":"","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918910","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
Noncommutative scalar field theory in a curved background: duality between noncommutative and effective commutative description 弯曲背景下的非交换标量场理论:非交换和有效交换描述之间的对偶性
4区 物理与天体物理
International Journal of Modern Physics a Pub Date : 2023-10-13 DOI: 10.1142/s0217751x23430042
Marija Dimitrijevic Ciric, Nikola Konjik, Andjelo Samsarov
{"title":"Noncommutative scalar field theory in a curved background: duality between noncommutative and effective commutative description","authors":"Marija Dimitrijevic Ciric, Nikola Konjik, Andjelo Samsarov","doi":"10.1142/s0217751x23430042","DOIUrl":"https://doi.org/10.1142/s0217751x23430042","url":null,"abstract":"We study a noncommutative (NC) deformation of a charged scalar field, minimally coupled to a classical (commutative) Reissner Nordstrom like background. The deformation is performed via a particularly chosen Killing twist to ensure that the geometry remains undeformed (commutative). An action describing a NC scalar field minimally coupled to the RN geometry is manifestly invariant under the deformed U(1) gauge symmetry. We find the equation of motion and conclude that the same equation is obtained from the commutative theory in a modified geometrical background described by an effective metric. This correspondence we call duality between formal and effective approach. We also show that a NC deformation via semi Killing twist operator cannot be rewriten in terms of an effective metric. There is a dual description for those particular deformations.","PeriodicalId":50309,"journal":{"name":"International Journal of Modern Physics a","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135918918","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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