Testable Signatures of Quantum Nonlocality in a Two-Dimensional Chiral-Wave Superconductor
- 17 January 2008
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 100 (2) , 027001
- https://doi.org/10.1103/physrevlett.100.027001
Abstract
A class of topological excitations—the odd-winding number vortices—in a spinless 2D chiral -wave () superconductor traps Majorana fermion states in the vortex cores. For a dilute gas of such vortices, the lowest energy fermionic eigenstates are intrinsically nonlocal. We predict two testable signatures of this unusual quantum nonlocality in quasiparticle tunneling experiments. We discuss why the associated teleportationlike phenomenon does not imply the violation of causality.
Keywords
All Related Versions
This publication has 24 references indexed in Scilit:
- Index Theorem for the Zero Modes of Majorana Fermion Vortices in Chiral-Wave SuperconductorsPhysical Review Letters, 2007
- Zero modes of two-dimensional chiral-wave superconductorsPhysical Review B, 2007
- Quantum Computation using Vortices and Majorana Zero Modes of aSuperfluid of Fermionic Cold AtomsPhysical Review Letters, 2007
- Proposal to stabilize and detect half-quantum vortices in strontium ruthenate thin films: Non-Abelian braiding statistics of vortices in asuperconductorPhysical Review B, 2006
- Fusion rules and vortices insuperconductorsPhysical Review B, 2006
- Geometric phases and quantum entanglement as building blocks for non-Abelian quasiparticle statisticsPhysical Review B, 2004
- Fault-tolerant quantum computation by anyonsPublished by Elsevier ,2002
- Non-Abelian Statistics of Half-Quantum Vortices in-Wave SuperconductorsPhysical Review Letters, 2001
- Paired states of fermions in two dimensions with breaking of parity and time-reversal symmetries and the fractional quantum Hall effectPhysical Review B, 2000
- 2n-quasihole states realize 2n−1-dimensional spinor braiding statistics in paired quantum Hall statesNuclear Physics B, 1996