Chapter II Superfluidity in Neutron Star Matter and Symmetric Nuclear Matter
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概要
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Nucleon superfluids which are realized in neutron star interior and symmetric nuclear matter are studied with use of realistic nuclear forces, in the density domain from the subnuclear region to about 3ρ_0(ρ_0 being the nuclear density). It is shown that characteristic aspects of nuclear forces manifest themselves in the appearance of several kinds of nucleon superfluids, which strongly depends on the density ρ. In this chapter emphasis is put on the pairing correlations where strong noncentral (tensor and spin-orbit) forces play important roles. A theoretical framework applicable to the nonzero angular-momentum pairing including the coupling due to tensor force is given by extending the usual BCS-Bogoliubov theory for the ^<1>S_0 pairing (the zero angular-momentum one). This formulation has been applied to the ^<3>P_2+^<3>F_2 pairing in neutron matter (the dominant component of neutron stars) and the ^<3>S_1+^<3>D_1 pairing in symmetric nuclear matter. In the former case, although spin-orbit force mainly contributes to the ^<3>P_2 attraction, the tensor coupling with the ^<3>F_2 component assists to realize the ^<3>P_2 superfluid. In the latter case, the tensor coupling to the ^<3>D_1 component plays a vital role to realize the ^<3>S_1 superfluid with a large energy gap. Results of the energy gaps calculated for such nonzero angular-momentum pairings, as well as those for the ^<1>S_0 pairing, are shown. We have found the realization of the following nucleon superfluids; the neutron ^<3>P_2 superfluid and the proton ^<1>S_0 one in the fluid core of neutron stars at ρsime(0.7~3)ρ_0, the neutron ^<1>S_0 superfluid in the inner crust of neutron stars at ρsime(10^<-3>~0.5)ρ_0, and the ^<3>S_1 superfluid in symmetric nuclear matter at a wide range of ρ incliding ρ_0, contrary to the ^<1>S_0 one realized at ρIsim ρ_0/2. The properties of these superfluids and their implications are also discussed.
- 理論物理学刊行会の論文
- 1993-06-20
著者
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Tamagaki Ryozo
Department Of Physcis Kyoto University
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Takatsuka Tatsuyuki
College Of Humaniteis And Social Sciences Iwate University
関連論文
- Nuclear Interaction of Core Region
- Scattering Observables of NN Interaction in the SU_6 Quark Model
- Reaction Matrix Calculations for Neutron-Rich He-Isotopes
- Nuclear Matter Calculations with Soft-Core Potentials in Momentum Space. I
- Nuclear Matter and Soft Core Potentials
- Alpha-Clustering in Nuclear Matter at Low Density
- An Explanation of N-N "Repulsive Core" in Terms of Forbidden States Based on the Quark Model
- Chapter X Outlook
- Chapter VIII Implications of Various Hadron Phases to Neutron Star Phenomena
- Chapter VII Neutral Pion Condensation in Hot and Dense Nuclear Matter
- Chapter VI A Chiral Symmetry Approach to Meson Condensations
- Chapter V Toward Realistic Treatment of Neutral Pion-Condensed State
- Chapter III Characteristic Aspects of Pion-Condensed Phases
- A Chiral-Bag Approach to Static Interaction between Two Baryons : A Numerical Study with Use of the Finite Element Method : Nuclear Physics
- Static Interaction between Two Spherical Chiral Bags
- Interaction between Two Quark Layers in Chiral Bag Model : Nuclear Physics
- Neutral Pion Condensation and Alternating Layer Spin Model Including Isobar Δ(1232) in Hot Symmetric Nuclear Matter
- Remarks on Shape of Repulsive Core of Nuclear Forces
- On the Applicability of the Pion-theoretical Nuclear Potential
- Two-Nucleon Problem with Pion Theoretical Potential, III : p-p Scattering at 18.2 Mev
- Two-Nucleon Problem with Pion Theorelical Potential, II : Singlet Even State
- Two-Nucleon Problem with Pion Theoretical Potential, I : Determination of Coupling Constant and Deuteron Problem
- Determination of the Pion Coupling Constant in Nuclear Forces
- Part II Verification of Pion Theory of Nuclear Forces
- Part I Development of Pion Theory of Nuclear Forces
- Chapter 1 Potential Model Approach
- Three-Alpha Structure of ^C in the Boson Model
- On the Collective Mode of Internal Motion of the Nucleus to be coupled with the Irrotational Surface Motion
- Chapter I Introduction
- Microscopic Study of ^O-^O Interaction by the Resonating Group Method
- A Possible Origin of Repulsive Core in Nuclear Forces
- Energy Gap in Nuclear Matter
- Cluster-Model Study of the T=1 States in A=4 System : ^3He+p Scattering
- Structure of the Second 0^+ State of ^4He
- On the Possible Origin of Repulsive Core and Spin-Orbit Forces in the Nucleon-Nucleon Interaction : Triplet Odd State
- Single-Particle Potential of Isobar Δ(1232) in Nuclear Matter Based on Extended Effective Interaction
- Pion Condensation and Alternating Layer Spin Model in Symmetric Nuclear Matter : Use of Extended Effective Nuclear Forces : Nuclear Physics
- α-α Interaction at High Energies
- A Chiral Bag Study of Quark Matter Confined in a Slab with Surrounding Pion Field : Particles and Fields
- One-Gluon-Exchange Effects and Stability of the Quark Alternating Layer Spin-Flavor Structure in High-Density Nuclear Matter : Nuclear Physics
- Quark Spin-Flavor Layered Structure of High Density Matter with Condensed π^0 Field in Chiral Bag Model : Nuclear Physics
- Quark ALS Structure with Condensed π^0 Field in Chiral Bag Model
- Chapter IX A Way to Quark Matter : Possible Intermediate Stages
- Chapter I Overview
- One Gluon Exchange Effect on the Saturation Property of Strange Quark Systems in the Bag Model : Nuclear Physics
- Postglitch Timing Behavior of Vela and Crab Pulsars in an Extended Starquake Model for Neutron Stars with Pion-Condensed Core : Nuclear Phusics
- Tensor Force of the Pion-Theoretical Potential and the Doublet Splitting in n-He^4 Scattering
- Effects of Tensor Force in Localized Neutron System
- Neutral Pion Condensation and ALS Model Including Isobar Δ(1236)
- Interaction between Alpha Particles
- Reaction Matrix Calculations in Neutron Matter with Alternating-Layer-Spin Structure under π^0 Condensation. II : Numerical Results
- Reaction Matrix Calculations in Neutron Matter with Alternating-Layer-Spin Structure under π^0 Condensation.I : Formulation
- Possible Coexistence of Neutral and Charged Pion Condensations in Nuclear Medium
- Repulsive Core of Nuclear Forces and Nuclear Matter
- Modification of Hamada-Johnston Potential
- Two-Nucleon Potential with the "One-Pion-Exchange Tail"
- Meson Theoretical Potentials in Triplet Odd State
- Energy Properties of Strange Quark Matter Studied in Constituent Quark Model : Nuclear Physics
- A Study on Three-Alpha Structure of ^C in the Faddeev Formalism
- Phase Transition of Hot Neutron Matter to π^0-Condensed State : Astrophysics and Relativity
- Proton ^1S_0-Dominant Superfluidity with Two-Dimensional Character under Well-Developed π^0 Condensation
- π^0-Condensation Resulting from Alternating-Laser-Spin Structure in Dense Neutron Matter
- Neutron ^3P_2-Dominant Superfluidity with Two-Dimensional Character under Well-Developed π^0 Condensation
- Attenuation of ^3P_2-Superfluidity in Neutron Star Matter Due to Charged-Pion Condensation
- Nuclear Matter at Finite Temperature : Dependence on Nuclear Incompressibility : Progress Letters
- On the Effect of Non-Condensed Pions in Nuclear Medium
- Characteristics and Evolution of Neutron Stars Just Born
- Corequake Model of Pulsar Glitches for Neutron Stars with Pion-Condensed Core
- Study on Neutron ^3P_2-Superfluidity with Two-Dimensional Character under π^0 Condensation in Neutron Star Matter
- Hot Neutron Star with Pion Condensations and Characteristics of Neutrino Burst from SN1987A
- A Note on Partial-Wave Contribution in [ALS]-Phase of Nuclear Medium
- Pion-Condensed Neutron Star and Supernova 1987A
- Density and Temperature of Compressed Nuclear Matter
- Two-Nucleon Potential with Full Recoil. III : Detailed Discussions on Its Characteristic Features
- Inner Region and Nonstatic Effects of Nuclear Forces in the Triplet Odd State
- Energy Gaps in Crust-Phase of Neutron Stars
- Potential Models of Nuclear Forces at Small Distances
- On the Meson-Theoretical Potentials
- Proton-Proton Scattering at 52 MeV
- Pion Theory of Nuclear Forces and Low Energy P-Wave Phase Shifts
- A Note on Crystallization of Dense Neutron Matter
- Neutron Cooper Pair of ^3P_2-Dominant Pairing with Two-Dimensional Character under the ALS Structure
- Closing Address
- Nucleon-Nucleon Potential in the Triplet-Even State
- A Cluster-Theoretical Approach to Saturation Property of Strange Quark Systems in Constituent Quark Model : Nuclear Physics
- Nucleon Superfluidity under Coexistent Condensation of Neutral and Charged Pions in Neutron Matter
- Optical Potential for High Energy α-α Scattering
- Tensor-Force Model for Quasi Two-Dimensional Pairing with a Possible Application to High-T_c Superconductivity : Condensed Matter and Statistical Physics
- Chapter II Superfluidity in Neutron Star Matter and Symmetric Nuclear Matter
- Particular Properties of Dense Supernova Matter : Nuclear Physics
- Properties of Hot Asymmetric Nuclear Matter : Nuclear Physics
- Proton Abundance in Dense Supernova Matter
- Effective Two-Nucleon Interaction in Asymmetric Nuclear Matter : Nuclear Physics
- Two-Nucleon Spin-Orbit Forces and the Doublet Splitting in Low Energy n-α Scattering
- Neutral-Meson Condensation in Nuclear Medium from the Viewpoint of One-Boson-Exchange Model
- Solidification and Pion Condensation in Nuclear Medium : Alternating-Layer-Spin Structure with One-Dimensional Localization Accompanying π^0 Condensate
- Study on Characteristics of π^0-Condensate in Neutron Matter : Effective Nucleon Mass and Role of Non-Tensor Force
- Cluster-Structure Study of ^Ne by "(^O-α)+(^C-^8Be)" Coupled Channel Orthogonality Condition Model. I : A Formulation of CCOCM Involving Rearrangement Channels and Study of Low-Lying 0^+States
- Chapter IV Nucleon Superfluidity under Pion Condensation in Neutron Star Matter
- Repulsive Core of Effective α-α Potential