Thermal Effect in Lipkin Model. I : Thermal Equilibrium State and Phase Transition : Nuclear Physics

スポンサーリンク

概要

• 論文の詳細を見る

• We study the thermal effect with the use of Lipkin model. We define the density and entropy operator associated with the mixed state representation of Lipkin model, which has been developed with the aid of auxiliary fermion field. We investigate the thermal equilibrium state and its phase transition. In super phase, the thermal effect breaks the particle-hole pairs with coupled angular momentum O and does not lift up nucleons from the lower level to upper one, contrary to the case of normal phase.

• 理論物理学刊行会の論文
• 1995-12-25

著者

• Providencia Joao

  Departamento De Fisica Universidade De Coimbra

• Kuriyama Atsushi

  Faculty Of Engineering Kansai University

• Yamamura Masatoshi

  Department Of Pure And Applied Physics Faculty Of Engineering Science Kansai University

• Tsue Yasuhiko

  Department Of Physics Kyoto University

• Kuriyama A

  Faculty Of Engineering Kansai University

• Yamamura Masatoshi

  Faculty Of Engineering Kansai University

• YAMAMURA Masatoshi

  Faculty of Engineering ,Kansai University

• PROVIDENCIA Joao

  Deparatmento de Fisica, Universidate de Coimbra

• TSUE Yasuhiko

  Departamento de Fisica,Universidade de Coimbra

関連論文

• First-Order Quark-Hadron Phase-Transition in a NJL-Type Model for Nuclear and Quark Matter : The Case of Symmetric Nuclear Matter(Nuclear Physics)
• Approach to a Fermionic SO(2N+2) Rotator Based on the SO(2N+1) Lie Algebra of the Fermion Operators (arXiv:1010.1642v1)
• The Lipkin Model in Many-Fermion System as an Example of the su(1, 1) ⊗ su(1, 1)-Algebraic Model(Nuclear Physics)
• A Note on the Two-Level Pairing Model Obeying the su (2) ⊗ su (2)-Algebra : Re-formation in Terms of the su (1, 1) ⊗ su (1, 1)-Algebra(Nuclear Physics)
• A New Boson Realization of the Two-Level Pairing Model in a Many-Fermion System and Its Classical Counterpart : The Role of the su (2) ⊗ su (1, 1)-Coherent State in the Schwinger Boson Representation for the su (2) ⊗ su (2)-Algebra(Nuclear P
• Note on Many-Quark Model with su(4) Algebraic Structure(Nuclear Physics)
• On the Exact Eigenstates and the Ground States Based on the Boson Realization for Many-Quark Model with su(4) Algebraic Structure(Nuclear Physics)
• Many-Quark Model with su(4) Algebraic Structure : An Example of Analytically Soluble Many-Fermion System(Nuclear Physics)
• Semi-Classical Approach to the Two-Level Pairing Model : Various Aspects of Phase Change(Nuclear Physics)
• Boson Realization of the su (3)-Algebra. IV : Holstein-Primakoff Representation for the Elliott Model (Nuclear Physics)
• Boson Realization of the su (3)-Algebra. III : Schwinger Representation for the Elliott Model (Nuclear Physics)
• Boson Realization of the su(3)-Algebra. II : Holstein-Primakoff Representation for the Lipkin Model(Nuclear Physics)
• Boson Realization of the su(3)-Algebra. I : Schwinger Representation for the Lipkin Model(Nuclear Physics)
• The Lipkin Model in the su(M+1)-Algebra for Many-Fermion System and Its Counterpart in the Schwinger Boson Representation(Nuclear Physics)
• A Possible Boson Realization of the so(4)-and the so(3, 1)-Algebra : In Relation to the Runge-Lenz-Pauli Vector(Nuclear Physics)
• A Note on the Eigenvalue Problem in the su(1, 1)-Algebra(Nuclear Physics)
• On the Eigenvalue Problem of the su(1,1)-Algebra and the Coupling Scheme of Two su(1,1)-Spins(Nuclear Physics)
• The Heisenberg Antiferromagnet : An Explicitly Rotational Invariant Formulation(Condensed Matter and Statistical Physics)
• An Orthogonal Set Constituted by Eight Kinds of Boson Operators
• A Note on a Boson Realization in Many-Boson System
• On the Coupling of Two su(1, 1)Spins in the Holstein-Primakoff Type Boson Representation
• On Parametric Resonance in Quantum Many-Body System : Collective Motion and Quantum Fluctuation around It in Coupled Lipkin Model(Nuclear Physics)
• Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. III : Parameter-Dependent Deformation
• Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. II : Unified Forms of Boson-Pair Coherent States in Even- and Odd-Boson Systems(Nuclear Physics)
• On the Random Phase Approximation Based on the Thermo Field Dynamics Formalism : Nuclear Physics
• A Note on Classical Orbits, Collective Submanifold and Quantal Collective Subspace : Progress Letters
• Specification of Collective Submanifold by Adiabatic Time-Dependent Hartree-Fock Method : Coupled Lipkin Model
• Generalized Center of Mass and Relative Motions in Classical Many-Body System : An Example of Solutions of Equations of Collective Submanifold : Nuclear Physics
• Unique Specification of Collective Submanifold : Nuclear Physics
• Quasi-Spin Squeezed State for Lipkin Model : Nuclear Physics
• Time-Dependent Hartree-Fock Method and Its Extension
• Equation of Collective Submanifold for Mixed States : Condensed Matter and Statistical Physics
• A Boson System Interacting with an External Harmonic Oscillator : The su(1,1)-Spin Like Behavior in the su(2)-Spin System : Nuclear Physics
• Three Forms of Coherent States in the su(2)-Spin System and Related Classical Counterparts : Nuclear Physics
• Coherent State Combined with Mixed State for an Imperfect Boson System I : Thermalization of Pure Squeezed Coherent State(Nuclear Physics)
• Imperfect Bose System and Its Mixed State Representation. II : Numerical Analysis with a Short-Range Replusive Force(Nuclear Physics)
• Imperfect Bose System and Its Mixed State Representation. II : Numerical Analysis with a Short-Range Replusive Force
• Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. I : Various Forms of Boson-Pair Coherent State(Nuclear Physics)
• Deformed Boson Scheme Stressing Even-Odd Boson Number Difference. I : Various Forms of Boson-Pair Coherent State
• Note on the Orthogonal Set in Six Kinds of Boson Operators : In Relation to the su(1,1)- and Its Relevant Algebras
• A Possible Form of the Orthogonal Set in Six Kinds of Boson Operators : In Relation to the su(2)- and Its Relevant Algebras
• On the Boson Number Operator in the Deformed Boson Scheme
• The su(1,1)-Algebraic Boson Model in the Deformed Boson Scheme : The Second Holstein-Primakoff Representation as q-Deformed Boson Operator(Nuclear Physics)
• The su (1, 1)-Algebraic Boson Model in the Deformed Boson Scheme : The Second Holstein-Primakoff Representation as q-Deformed Boson Operator
• Note on the Deformed Boson Scheme in Four Kinds of Boson Operators
• Even-Odd Effect on the Thermal Equilibrium State of the Pairing Model. II : Mean Field Approximation and Renormalized Distribution
• Even-Odd Effect on the Thermal Equilibrium State of the Pairing Model. I : Comparison between Canonical and Grand Canonical Ensembles
• Deformed Boson Scheme including Conventional q-Deformation in Time-Dependent Variational Method. IV : The su(2)_q-and the su(1, 1)_q-Algebras in Four Kinds of Boson Operators
• Two Contrastive Boson-Pair Coherent States in Deformed Boson Scheme
• On the Multiboson Coherent State in Deformed Boson Scheme
• Note on the Deformed Boson Scheme in Time-Dependent Variational Method
• Deformed Boson Scheme including Conventional q-Deformation in Time-Dependent Variational Method. III : Deformation of the su(2,1)-Algebra in Terms of Three Kinds of Boson Operators
• Schwinger-Type Boson Realization for the su(4) Algebra : In Relation to the Description of Many-Fermion Systems in Pairing Correlation
• Schwinger-Type Boson Realization for Three Sub-Algebras of the su(4) Algebra : The so(5), the so(4) and the su(2)⊗su(2) Algebra
• Utility of su(1,1)-Algebra in a Schematic Nuclear su(2)-Model
• On the Color-Singlet States in Many-Quark Model with the su(4)-Algebraic Structure. I : Color-Symmetric Form(Nuclear Physics)
• Deformed Boson Scheme including Conventional q-Deformation in Time-Dependent Variational Method.II : Deformation of the su(2)- and the su(1, 1)-Algebras in the Schwinger Boson Representation
• Deformed Boson Scheme including Conventional q-Deformation in Time-Dependent Variational Method.I : The Case of Many-Body Systems Consisting of One Kind of Boson Operator
• A Possible Boson Realization of Generalized Lipkin Model for Many-Fermion System : The su(M+1)-Algebraic Model in Non-Symmetric Boson Representation
• A Note on Collective Variables Determined by Equations of Collective Submanifold : In Relation to Tomonaga Theory of Collective Motion : Nuclear Physics
• Canonical Formulation of Time-Dependent Hartree-Fock Method : Nuclear Physics
• Generalization of Equation of Collective Submanifold : A Theory of Large Amplitude Collective Motion and Its Coupling with Intrinsic Degrees of Freedom : Nuclear Physics
• Canonical Coordinate System Suitable for Adiabatic Treatment of Collective Motion : General Case : Nuclear Physics
• Minimal Uncertainty in Quantal System Obeying the su(2)-Algebra : Nuclear Physics
• Pairing Model and Mixed State Representation. II : Grand Partition Function and Its Mean Field Approximation
• Pairing Model and Mixed State Representation. I : Thermal Equilibrium State
• Canonical Formulation of Mixed State and Irreducible Representation of u(M) Algebra
• Time-Evolution of the Cohererut and the Squeezed States of Many-Body Systems Based on the Basic Idea of the Boson Mapping and the TDHF Method
• Imperfect Bose System and Its Mixed State Representation. I : Thermal Equilibrium State of Imperfect Bose System
• The Lipkin Model in a New Boson Realization : Basic Idea
• A Possible Description of Many-Body System Composed of Four Kinds of Boson Operators : In Relation to the su(2)- and the su(1,1)-Algebraic Model
• On the Schwinger Boson Representation of an Extended (M+1)(N+1)-Dimensional Algebra Containing the su(M+1)- and the su(N,1)-Algebra
• Canonicity Condition and Its Favourite Form of Collective Hamiltonian
• A Possible Description of Classical Motion in Quantal Systems
• Description of Mixed States Based on the Time-Dependent Hartree-Fock Theory. II : Classical Boson Expansion : Nuclear Physics
• Description of Mixed States Based on the Time-Dependent Hartree-Fock Theory. I : Formalism of Thermo Field Dynamics in Canonical Theory with Constraints : Nuclear Physics
• Note on the Minimum Weight States in the su(2)-Algebraic Many-Fermion Model : Extension of the Role of the Auxiliary su(2)-Algebra(Nuclear Physics)
• Background of the su(2)-Algebraic Many-Fermion Models in the Boson Realization : Construction of Minimum Weight States by Means of an Auxiliary su(2)-Algebra and Its Related Problems(Nuclear Physics)
• Color-Singlet Three-Quark States in the su(4)-Algebraic Many-Quark Model : An Example of the su(4) ⨂ su(4)-Model(Nuclear Physics)
• Re-Formation of Many-Quark Model with the su(4)-Algebraic Structure in the Schwinger Boson Realization : Reconsideration in the Original Fermion Space(Nuclear Physics)
• Instability of Thermal Equilibrium State of the Lipkin Model : Nuclear Physics
• On the q-Boson Realization of the su_q(2) and su_q(1,1) Algebras : The Marumori-Yamamura-Tokunaga Method : Nuclear Physics
• A Boson System Interacting with an External Harmonic Oscillator : A Possible Description of Statistically Mixed State
• A Possible Description of Many-Body System Composed of Three Kinds of Boson Operators : The su(2,1)-Boson Model : Neuclear Physics
• Modification of the Conventional Holstein-Primakoff Boson Representation for the su(1,1)-Algebra and Its Classical Counterpart
• Three Forms of Boson Expansions for the su(2)-Spin System and Their c-Number Counterparts : Nuclear Physics
• Thermal Effect in the Lipkin Model. III : Dynamical Fluctuation of Thermal Equilibrium State
• Thermal Effect in Lipkin Model. II : Grand Partition Function and Mean Field Approximation
• Thermal Effect in Lipkin Model. I : Thermal Equilibrium State and Phase Transition : Nuclear Physics
• On the Canonical Equivalence of Classical Boson Expansions for Mixed States : Nuclear Physics
• Application of the Canonical Theory of Mixed State to the Description of Bound State of the Nucleus. II : Schematic Model and Physical Ingredients of Constraints : Nuclear Physics
• Description of Mixed States Based on the Time-Dependent Hartree-Fock Theory. III : Random Phase Approximation and Its First Order Corrections : Nuclear Physics
• Application of the Canonical Theory of Mixed State to the Description of Bound States of the Nucleus. I : Reformulation of the Theory of Mixed State : Nuclear Physics
• Two Types of Schrodinger Time Evolution in the Formalism of Thermo Field Dynamics and Their Equivalence to the Liouville-von Neumann Equation
• Effective Potential Approach to Quark Ferromagnetization in High Density Quark Matter(Nuclear Physics)
• On the Color-Singlet States in Many-Quark Model with the su(4)-Algebraic Structure. I : Color-Symmetric Form
• First-Order Quark-Hadron Phase-Transition in a NJL-Type Model for Nuclear and Quark Matter : The Case of Symmetric Nuclear Matter
• A Boson System Interacting with an External Harmonic Oscillator : A Possible Description of Statistically Mixed State
• A Possible Description of Many-Body System Composed of Three Kinds of Boson Operators : The su(2,1)-Boson Model : Neuclear Physics
• A Note on the Eigenvalue Problem in the su(1, 1)-Algebra(Nuclear Physics)

もっと見る 閉じる

スポンサーリンク