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A Proposal for Realizing a 3-Qubit Controlled-Phase Gate with Superconducting Qubit Systems Coupled to a Cavity 一种利用超导量子比特系统耦合到空腔实现3量子比特控相门的方案
Progress of Theoretical Physics Pub Date : 2012-08-07 DOI: 10.1143/PTP.128.587
Chuiping Yang
{"title":"A Proposal for Realizing a 3-Qubit Controlled-Phase Gate with Superconducting Qubit Systems Coupled to a Cavity","authors":"Chuiping Yang","doi":"10.1143/PTP.128.587","DOIUrl":"https://doi.org/10.1143/PTP.128.587","url":null,"abstract":"We present a way to realize a 3-qubit quantum controlled-phase gate with superconducting qubit systems coupled to a cavity. This proposal does not require adjustment of the qubit level spacings or identical qubit-cavity coupling constants. Moreover, since only a resonant interaction is applied, the gate can be performed fast, within $sim $ 10 nanosecond. This proposal is quite general, which can be applied to various types of superconducting qubits, atoms trapped in a cavity, or quantum dots coupled to a resonator.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"587-599"},"PeriodicalIF":0.0,"publicationDate":"2012-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.587","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64015572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Onset of Possible Octupole Deformation in Rotational 106,108Te Nuclei 旋转106,108Te核中可能的八极变形的开始
Progress of Theoretical Physics Pub Date : 2012-08-01 DOI: 10.1143/PTP.128.363
Hua-Lei Wang, Hongliang Liu, F. Xu, C. Jiao
{"title":"Onset of Possible Octupole Deformation in Rotational 106,108Te Nuclei","authors":"Hua-Lei Wang, Hongliang Liu, F. Xu, C. Jiao","doi":"10.1143/PTP.128.363","DOIUrl":"https://doi.org/10.1143/PTP.128.363","url":null,"abstract":"Octupole correlation in near-proton-drip-line nuclei 106,108 Te has been investigated using improved total Routhian surface calculations with the inclusion of reflection-asymmetric deformations. It is found that 106,108 Te have reflection-symmetric shapes at low spins, then become octupole deformed at rotational frequencies ω ≈ 0.50 − 0.60 MeV/~ .T he onset of strong octupole correlation is consistent with the observation of octupole bands in 108 Te. The octupole structure predicted for 106 Te would be accessible in experiments. Subject Index: 211, 212, 213","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"363-371"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.363","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64014873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Negative Refraction with Little Loss Manipulated by the Voltage and Pulsed Laser in Double Quantum Dots 电压和脉冲激光控制双量子点负折射的小损耗
Progress of Theoretical Physics Pub Date : 2012-08-01 DOI: 10.1143/PTP.128.243
Shun-Cai Zhao, Xiao-fan Qian, Ya-ping Zhang, Yong-an Zhang
{"title":"Negative Refraction with Little Loss Manipulated by the Voltage and Pulsed Laser in Double Quantum Dots","authors":"Shun-Cai Zhao, Xiao-fan Qian, Ya-ping Zhang, Yong-an Zhang","doi":"10.1143/PTP.128.243","DOIUrl":"https://doi.org/10.1143/PTP.128.243","url":null,"abstract":"The paper demonstrates that negative refractive index can be achieved via tuning the tunneling rate between a double quantum dots (QDs) system by applying a bias voltage, and a pulsed laser. As the bias voltage being changed, the refraction index can be tunable to negative with the simultaneous negative permittivity and permeability. While the varying pulsed laser is applied to the double QDs system, moreover, the negative refractive index with little loss can be obtained. The flexible manipulation on a solid state system to realize negative refraction may give a new way for experimental research in the future. Subject Index: 064","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"243-250"},"PeriodicalIF":0.0,"publicationDate":"2012-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.243","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64014727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Massive modes in magnetized brane models 磁化膜模型中的质量模态
Progress of Theoretical Physics Pub Date : 2012-07-30 DOI: 10.1143/PTP.128.903
Yuta Hamada, Tatsuo C. Kobayashi
{"title":"Massive modes in magnetized brane models","authors":"Yuta Hamada, Tatsuo C. Kobayashi","doi":"10.1143/PTP.128.903","DOIUrl":"https://doi.org/10.1143/PTP.128.903","url":null,"abstract":"We study higher dimensional models with magnetic fluxes, which can be derived from superstring theory. We study mass spectrum and wavefunctions of massless and massive modes for spinor, scalar and vector fields. We compute the 3-point couplings and higher order couplings among massless modes and massive modes in 4D low-energy effective field theory. These couplings have non-trivial behaviors, because wavefunctions of massless and massive modes are non-trivial.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"903-923"},"PeriodicalIF":0.0,"publicationDate":"2012-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.903","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64016248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 32
Confinement and Dynamical Symmetry Breaking in Non-SUSY Gauge Theory from S-Duality in String Theory 从弦理论中的s -对偶性看非susy规范理论中的约束和动态对称破缺
Progress of Theoretical Physics Pub Date : 2012-07-10 DOI: 10.1143/PTP.128.1175
S. Sugimoto
{"title":"Confinement and Dynamical Symmetry Breaking in Non-SUSY Gauge Theory from S-Duality in String Theory","authors":"S. Sugimoto","doi":"10.1143/PTP.128.1175","DOIUrl":"https://doi.org/10.1143/PTP.128.1175","url":null,"abstract":"We discuss an attempt to understand confinement and dynamical symmetry breaking in a 4-dimensional non-supersymmetric gauge theory using S-duality in type IIB string theory. The electric theory is a USp (2n) gauge theory and its magnetic dual is argued to be an SO(2n )o rSO(2n� 1) gauge theory. These theories are obtained as the low-energy effective theory of O3-D3 systems in type IIB string theory, which are related by S-duality. Confinement and dynamical symmetry breaking in the USp (2n) gauge theory are caused by the condensation of scalar fields in the magnetic dual description, which is consistent with the scenario of the dual Meissner mechanism for the confinement. Subject Index: 101, 102, 120, 123","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"1175-1209"},"PeriodicalIF":0.0,"publicationDate":"2012-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.1175","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64011997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
Nonsymmetric Saddle-Node Pairs for the Reversible Smale Horseshoe Map 可逆小马蹄形图的非对称鞍节点对
Progress of Theoretical Physics Pub Date : 2012-07-01 DOI: 10.1143/PTP.128.15
Y. Yamaguchi, K. Tanikawa
{"title":"Nonsymmetric Saddle-Node Pairs for the Reversible Smale Horseshoe Map","authors":"Y. Yamaguchi, K. Tanikawa","doi":"10.1143/PTP.128.15","DOIUrl":"https://doi.org/10.1143/PTP.128.15","url":null,"abstract":"In the reversible Smale horseshoe, we introduce a new symbol sequence other than the conventional one made of symbols 0 and 1. This system is based on subregionsE,F,S ,a ndD of resonance regions of rotation number between 0 and 1/2. We call E(p/q),F(p/q),S(p/q), and D(p/q )f or 0 <p /q <1/2, and E(1/2) and S(1/2) blocks. These blocks play the role of symbols. Thus, the number of symbols is infinite. In the system, space is divided finer and time is divided coarser. Given a periodic orbit, we want to know the origin of the orbit, that is, how the orbit has been bifurcated. In this paper, we look for the pair component of saddle-node pairs. We propose a procedure to find the pair component for a given nonsymmetric periodic orbit of the general type. If it turns out that there is no pair component, we suggest that the periodic orbit has been born through equiperiod bifurcation or period-doubling bifurcation. Subject Index: 030","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"15-30"},"PeriodicalIF":0.0,"publicationDate":"2012-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.15","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64012186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The BCS-Bogoliubov and the su(2)-Algebraic Approach to the Pairing Model in Many-Fermion System — The Quasiparticle in the Conservation of the Fermion Number — 多费米子系统配对模型的BCS-Bogoliubov和su(2)-代数方法——费米子数守恒中的准粒子
Progress of Theoretical Physics Pub Date : 2012-06-08 DOI: 10.1143/PTP.128.693
Y. Tsue, C. Providência, J. Providência, M. Yamamura
{"title":"The BCS-Bogoliubov and the su(2)-Algebraic Approach to the Pairing Model in Many-Fermion System — The Quasiparticle in the Conservation of the Fermion Number —","authors":"Y. Tsue, C. Providência, J. Providência, M. Yamamura","doi":"10.1143/PTP.128.693","DOIUrl":"https://doi.org/10.1143/PTP.128.693","url":null,"abstract":"The relation between two approaches to the su(2)-algebraic many-fermion model is discussed: (1) the BCS-Bogoliubov approach in terms of the use of the quasiparticles representing all the degrees of freedom except those related to the Cooper-pairs and (2) the conventional algebraic approach in terms of the use of the minimum weight states, from which the Cooper-pairs are excluded. In order to arrive at the goal, the idea of the quasiparticles is brought up in the conservation of the fermion number. Under the c-number replacement for the three su(2)-generators, the quasiparticles suggested in this paper are reduced to those in the BCS-Bogoliubov approach. It is also shown that the two approaches are equivalent through the c-number replacement. Further, a certain modification of the BCS-Bogoliubov approach is discussed.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"693-715"},"PeriodicalIF":0.0,"publicationDate":"2012-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.693","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64015783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
A Role of the Quasiparticle in the Conservation of the Fermion Number An Example Illustrative of the Deformation of the Cooper Pair 准粒子在费米子数守恒中的作用库珀对变形的一个例子
Progress of Theoretical Physics Pub Date : 2012-06-08 DOI: 10.1143/PTP.128.717
Y. Tsue, C. Providência, J. Providência, M.Yamamura
{"title":"A Role of the Quasiparticle in the Conservation of the Fermion Number An Example Illustrative of the Deformation of the Cooper Pair","authors":"Y. Tsue, C. Providência, J. Providência, M.Yamamura","doi":"10.1143/PTP.128.717","DOIUrl":"https://doi.org/10.1143/PTP.128.717","url":null,"abstract":"The role of the “quasiparticle” introduced in last paper by the present authors is discussed. It serves as a guide for the deformation of the Cooper-pair in the BCS-Bogoliubov approach. As an illustrative example, a certain case is treated. This case produces the su(1,1)-like behavior in the su(2)-algebraic many-fermion system. In our last paper, 1) which will be, hereafter, referred to as (I), we presented the quasiparticle in the conservation of the fermion number. Since this quasiparticle is not fermion operator, but the role is very similar to the conventional quasiparticle, we called it the “quasiparticle.” Through the medium of the “quasiparticle,” we showed that the BCS-Bogoliubov and the conventional algebraic approach are, in a certain sense, equivalent. In the process arriving at this conclusion, the following point played a basic role: the “quasiparticle” is reduced to the conventional quasiparticle, if the su(2)-generators forming the Cooper-pair are replaced with cnumbers. The aim of this paper is to discuss one more role of the “quasiparticle,” namely, to present a possible guide for the deformation of the Cooper-pair in the BCS-Bogoliubov approach. In this paper, the interpretation of the symbols adopted (I) will be not repeated. We will start in the condensed Cooper-pair state in the BCS-Bogoliubov approach shown in the relation (I·2·4): |φB) = 1","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"128 1","pages":"717-726"},"PeriodicalIF":0.0,"publicationDate":"2012-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.128.717","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64016142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Symplectic Expression for Chromatic Aberrations 色差的辛表达式
Progress of Theoretical Physics Pub Date : 2012-06-01 DOI: 10.1143/PTP.127.1099
Y. Seimiya, K. Ohmi, D. Zhou, J. Flanagan, Y. Ohnishi
{"title":"Symplectic Expression for Chromatic Aberrations","authors":"Y. Seimiya, K. Ohmi, D. Zhou, J. Flanagan, Y. Ohnishi","doi":"10.1143/PTP.127.1099","DOIUrl":"https://doi.org/10.1143/PTP.127.1099","url":null,"abstract":"Chromatic aberrations characterize how linear optics parameters, including tunes, beta functions, and x-y coupling parameters, depend on momentum deviation. The definition of chromatic aberration is based on static or slowly varying momentum deviations. Linear optics parameters are expanded in terms of momentum deviation; their coefficients are called chromatic aberrations in this paper. The Hamiltonian and a six-dimensional symplectic map, which are taken into account in both betatron a nd synchrotron motions, are reconstructed using the measured chromatic aberrations. This map can be used to study the effects of chromatic aberrations in beam-beam, space charge, and electron cloud phenomena. Subject Index: 600, 630","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"127 1","pages":"1099-1119"},"PeriodicalIF":0.0,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.127.1099","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64008706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Quadrupole Excitation of Tin Isotopes in Extended Random-Phase Approximation 扩展随机相近似中锡同位素的四极激发
Progress of Theoretical Physics Pub Date : 2012-06-01 DOI: 10.1143/PTP.127.1121
M. Tohyama
{"title":"Quadrupole Excitation of Tin Isotopes in Extended Random-Phase Approximation","authors":"M. Tohyama","doi":"10.1143/PTP.127.1121","DOIUrl":"https://doi.org/10.1143/PTP.127.1121","url":null,"abstract":"The first excited states of tin isotopes are calculated using an extended random-phase approximation that is formulated using a correlated ground state obtained from the time-dependent density-matrix theory. It is found that the isotope dependences of the excitation energy and transition strength are well reproduced.","PeriodicalId":49658,"journal":{"name":"Progress of Theoretical Physics","volume":"127 1","pages":"1121-1130"},"PeriodicalIF":0.0,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1143/PTP.127.1121","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"64008865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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