TY - JOUR
T1 - Quantum information transfer between topological and spin qubit systems
AU - Leijnse, Martin Christian
AU - Flensberg, Karsten
PY - 2011/11/18
Y1 - 2011/11/18
N2 - We propose a method to coherently transfer quantum information, and to create entanglement, between topological qubits and conventional spin qubits. Our suggestion uses gated control to transfer an electron (spin qubit) between a quantum dot and edge Majorana modes in adjacent topological superconductors. Because of the spin polarization of the Majorana modes, the electron transfer translates spin superposition states into superposition states of the Majorana system, and vice versa. Furthermore, we show how a topological superconductor can be used to facilitate long-distance quantum information transfer and entanglement between spatially separated spin qubits.
AB - We propose a method to coherently transfer quantum information, and to create entanglement, between topological qubits and conventional spin qubits. Our suggestion uses gated control to transfer an electron (spin qubit) between a quantum dot and edge Majorana modes in adjacent topological superconductors. Because of the spin polarization of the Majorana modes, the electron transfer translates spin superposition states into superposition states of the Majorana system, and vice versa. Furthermore, we show how a topological superconductor can be used to facilitate long-distance quantum information transfer and entanglement between spatially separated spin qubits.
U2 - 10.1103/PhysRevLett.107.210502
DO - 10.1103/PhysRevLett.107.210502
M3 - Journal article
C2 - 22181866
SN - 0031-9007
VL - 107
SP - 210502
JO - Physical Review Letters
JF - Physical Review Letters
IS - 21
ER -