Domain walls in neutron ${}^3{P}_2$ superfluids in neutron stars

Abstract

We work out domain walls in neutron ${}^3{P}_2$ superfluids realized in the core of neutron stars. Adopting the Ginzburg-Landau (GL) theory as a bosonic low-energy effective theory, we consider configurations of domain walls interpolating ground states, i.e., the uniaxial nematic (UN), D${}_2$-biaxial nematic (D${}_2$-BN), and D${}_4$-biaxial nematic (D${}_4$-BN) phases in the presence of zero, small and large magnetic fields, respectively. We solve the Euler-Lagrange equation from the GL free energy density, and calculate surface energy densities of the domain walls. We find that one extra Nambu-Goldstone mode is localized in the vicinity of a domain wall in the UN phase while a U(1) symmetry restores in the vicinity of one type of domain wall in the D${}_2$-BN phase and all domain walls in the D${}_4$-BN phase. Considering a pile of domain walls in the neutron stars, we find that the most stable configurations are domain walls perpendicular to the magnetic fields piled up in the direction along the magnetic fields in the D${}_2$-BN and D${}_4$-BN phases. We estimate the energy released from the deconstruction of the domain walls in the edge of a neutron star, and show that it can reach an astrophysical scale such as glitches in neutron stars.

arXiv comment31 pages, 12 figures

References in corpus (72)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Shapiro delay measurement of a two solar mass neutron star
• A Massive Pulsar in a Compact Relativistic Binary
• Spinor Bose-Einstein condensates
• From hadrons to quarks in neutron stars: a review
• Neutrino Emission from Neutron Stars
• From low-momentum interactions to nuclear structure
• Pairing in nuclear systems: from neutron stars to finite nuclei
• Rapid Cooling of the Neutron Star in Cassiopeia A Triggered by Neutron Superfluidity in Dense Matter
• Cooling neutron star in the Cassiopeia~A supernova remnant: Evidence for superfluidity in the core
• Solitons in the Higgs phase -- the moduli matrix approach --
• Neutron stars - cooling and transport
• Cooling neutron stars and superfluidity in their interiors
• Direct Observation of the Cooling of the Cassiopeia A Neutron Star
• Superfluidity in nuclear systems and neutron stars
• All Exact Solutions of a 1/4 Bogomol'nyi-Prasad-Sommerfield Equation
• 3P_2-3F_2 pairing in neutron matter with modern nucleon-nucleon potentials
• Semi-superfluid strings in High Density QCD
• Ferromagnetism of quark liquid
• Vortices and Other Topological Solitons in Dense Quark Matter
• D-brane Solitons in Supersymmetric Sigma-Models
• Non-Abelian Strings in High Density QCD: Zero Modes and Interactions
• Superfluidity and Superconductivity in Neutron Stars
• Instabilities of Non-Abelian Vortices in Dense QCD
• Superfluidity and Superconductivity in Neutron Stars
• Neutron Stars in the Laboratory
• Color Magnetic Flux Tubes in Dense QCD
• Color Magnetic Flux Tubes in Dense QCD. II: Effective World-Sheet Theory
• Triplet pairing in beta-stable neutron star matter
• Neutrino emission from triplet pairing of neutrons in neutron stars
• Creating vortons and three-dimensional skyrmions from domain wall annihilation with stretched vortices in Bose-Einstein condensates
• Spin Polarized Asymmetric Nuclear Matter and Neutron Star Matter Within the Lowest Order Constrained Variational Method
• Quasi-Nambu-Goldstone Modes in Bose-Einstein Condensates
• Goldstone Bosons in the 3P2 Superfluid Phase of Neutron Matter and Neutrino Emission
• Universalities of Triplet Pairing in Neutron Matter
• Ferromagnetic neutron stars: axial anomaly, dense neutron matter, and pionic wall
• ${}^3{P}_2$-${}^3{F}_2$ Pairing in Dense Neutron Matter: The Spectrum of Solutions
• Wall-vortex composite solitons in two-component Bose-Einstein condensates
• Triplet Pairing in Neutron Matter
• Spin Polarization and Color Superconductivity in Quark Matter
• Anyonic particle-vortex statistics and the nature of dense quark matter
• Nuclear pairing from microscopic forces: singlet channels and higher-partial waves
• Continuity of vortices from the hadronic to the color-flavor locked phase in dense matter
• Colorful boojums at the interface of a color superconductor
• Quark-hadron continuity under rotation: Vortex continuity or boojum?
• Analogues of D-branes in Bose-Einstein condensates
• Goldstone modes in the neutron star core
• Magnetic Properties of Quantized Vortices in Neutron ${}^3{P}_2$ Superfluids in Neutron Stars
• Triplet Pairing in pure neutron matter
• Collective modes of the order parameter in a triplet superfluid neutron liquid
• Topology and symmetry of surface Majorana arcs in cyclic superconductors
• ${}^3{P}_2$ Superfluids Are Topological
• Reexamining Ginzburg-Landau theory for neutron ${}^3{P}_2$ superfluidity in neutron stars
• The low lying modes of triplet-condensed neutron matter and their effective theory
• Zero sound in triplet-correlated superfluid neutron matter
• Neutrino emission from spin waves in neutron spin-triplet superfluid
• Neutrino emissivity of ${}^3{P}_2$-${}^3{F}_2$ superfluid cores in neutron stars
• Neutrino emissivity of anisotropic neutron superfluids
• Phase structure of neutron ${}^3{P}_2$ superfluids in strong magnetic fields in neutron stars
• Superfluid phases of triplet pairing and neutrino emission from neutron stars
• D-brane solitons and boojums in field theory and Bose-Einstein condensates
• Collective excitations of a quantized vortex in ${}^3{P}_2$ superfluids in neutron stars
• Possible Ferromagnetism in the Large N(c) and N(f) limit of quark matter
• Half-quantized Non-Abelian Vortices in Neutron ${}^3{P}_2$ Superfluids inside Magnetars
• Massive and massless modes of the triplet phase of neutron matter
• New eigen-mode of spin oscillations in the triplet superfluid condensate in neutron stars
• Neutrino emissivity from Goldstone boson decay in magnetized neutron matter
• Possibility of ferromagnetic neutron matter
• Quark-Hadron Crossover with Vortices
• Ferromagnetism of dense matter and magnetic properties of neutron stars
• Effects of strong magnetic fields on neutron ${}^3{P}_2$ superfluidity with spin-orbit interactions
• Topological spinor vortex matter on spherical surface induced by non-Abelian spin-orbital-angular-momentum coupling

Cited by in corpus (15)

• Insights into the physics of neutron star interiors from pulsar glitches
• Microscopic description of axisymmetric vortices in ${}^3{P}_2$ superfluids
• Critical endpoint and universality class of neutron ${}^3{P}_2$ superfluids in neutron stars
• Non-Abelian Half-Quantum Vortices in ${}^3{P}_2$ Topological Superfluids
• Coexistence phase of ${}^1{S}_0$ and ${}^3{P}_2$ superfluids in neutron stars
• Spin-polarized phases of ${}^3{P}_2$ superfluids in neutron stars
• Core structures of vortices in Ginzburg-Landau theory for neutron ${}^3{P}_2$ superfluids
• Exhausting all exact solutions of BPS domain wall networks in arbitrary dimensions
• Scattering of metastable lumps in a model with a false vacuum
• Proximity effects of vortices in neutron ${}^3{P}_2$ superfluids in neutron stars: Vortex core transitions and covalent bonding of vortex molecules
• Exact solutions of domain wall junctions in arbitrary dimensions
• Strongly interacting matter in extreme magnetic fields
• Symmetry classification of uniform states in spin-2 Bose-Einstein condensates and neutron ${}^3{P}_2$ superfluids
• Emergent chirality and superfluidity of parity-doubled baryons in neutron stars
• Distributed vorticity model for vortex molecule dynamics