Non-Abelian statistics of half-quantum vortices in p-wave superconductors.
@article{Ivanov2001NonAbelianSO, title={Non-Abelian statistics of half-quantum vortices in p-wave superconductors.}, author={Dmitri A. Ivanov}, journal={Physical review letters}, year={2001}, volume={86 2}, pages={ 268-71 } }
Excitation spectrum of a half-quantum vortex in a p-wave superconductor contains a zero-energy Majorana fermion. This results in a degeneracy of the ground state of the system of several vortices. From the properties of the solutions to Bogoliubov-de Gennes equations in the vortex core we derive the non-Abelian statistics of vortices identical to that for the Moore-Read (Pfaffian) quantum Hall state.
972 Citations
Appearance of Magnetization around a Pair of Half-Quantum Vortices in Chiral p-Wave Superconductors
- Physics
- 2013
We have investigated quasi-particle excitations around a pair of half-quantum vortices in chiral \(p\)-wave superconductors, using the Bogoliubov–de Gennes equations. We use the elliptic coordinates…
Spin-current induced around half-quantum vortices in chiral p-wave superconducting states
- Physics
- 2017
We study the electronic state around a half-quantum vortex (HQV) in a chiral p-wave superconductor based on a square lattice three band tight-binding model by means of the Bogoliubov-de Gennes…
Quasiparticle States Around a Half-quantum Vortex in a Chiral p-wave Superconducting State
- Physics
- 2015
Quasi-particle structures around a pair of half-quantum vortices in chiral p-wave super conductors
- Physics
- 2012
Quasi-particle structures around a pair of half-quantum vortices (HQVs) and two singly quantized vortices are investigated, using the Bogoliubov-de Gennes equation. For this purpose, a new numerical…
Non-Abelian Majorana fermions in topological s-wave Fermi superfluids
- Physics
- 2019
By solving the Bogoliubov--De Gennes equations analytically, we derive the fermionic zero-modes satisfying the Majorana property that exist in vortices of a two-dimensional $s$-wave Fermi superfluid…
Condensation of fermion zero modes in the vortex
- Physics
- 2015
The energy levels of the fermions bound to the vortex are considered for vortices in the superfluid/superconducting systems that contain the symmetry protected plane of zeroes in the gap function in…
Tunable Flux Vortices in Two-Dimensional Dirac Superconductors.
- PhysicsPhysical review letters
- 2020
It is demonstrated how the single-particle Berry curvature associated with the normal phase in two dimensions modifies the fluxoid quantization of a Bardeen-Cooper-Schrieffer superconductor.
Quasi-particle spectrum around half-quantum vortices (HQVs) in triplet superconductors
- Physics
- 2009
It is shown recently triplet superconductors like Sr2RuO4, UPt3 and PrOs4Sb12 have Majorana fermion, d-soliton and half-quantum vortices (HQVs). The Bogoliubov de Gennes (BdG) equation necessary for…
References
SHOWING 1-10 OF 24 REFERENCES
The energy-level statistics in the core of a vortex in a p-wave superconductor
- Physics
- 1999
In the presence of strong disorder, the statistics of quasiparticle levels in the core of a vortex in a two-dimensional p-wave superconductor belongs to the universality class B corresponding to the…
2n-quasihole states realize 2n−1-dimensional spinor braiding statistics in paired quantum Hall states
- Physics
- 1996
Quasiholes and fermionic zero modes of paired fractional quantum Hall states: The mechanism for non-Abelian statistics.
- PhysicsPhysical review. B, Condensed matter
- 1996
The quasihole states of several paired states, the Pfaffian, Haldane-Rezayi, and 331 states, are studied, analytically and numerically, in the spherical geometry for the Hamiltonians for which the ground states are known exactly.
Monopole, half-quantum vortex, and nexus in chiral superfluids and superconductors
- Physics
- 1999
Two exotic objects are still not identified experimentally in chiral superfluids and superconductors. These are the half-quantum vortex, which plays the part of the Alice string in relativistic…
Mutual friction in superfluid 3He: Effects of bound states in the vortex core.
- PhysicsPhysical review. B, Condensed matter
- 1991
Mutual friction is calculated within a microscopic quantum-mechanical Green's-function formalism, valid for dynamical processes, and it is predicted that strong dissipation should be observed at a resonant frequency of about 10 kHz, owing to transitions between the bound-state energy levels.
Paired states of fermions in two dimensions with breaking of parity and time-reversal symmetries and the fractional quantum Hall effect
- Physics
- 2000
We analyze pairing of fermions in two dimensions for fully gapped cases with broken parity (P) and time reversal (T), especially cases in which the gap function is an orbital angular momentum (l)…
Fermionic quantum computation
- Physics
- 2000
We define a model of quantum computation with local fermionic modes (LFMs) — sites which can be either empty or occupied by a fermion. With the standard correspondence between the Foch space of m…