Quantum computation using vortices and majorana zero modes of a px + ipy superfluid of fermionic cold atoms.
We propose to use the recently predicted two-dimensional "weak-pairing" px + ipy superfluid state of fermionic cold atoms as a platform for topological quantum computation. In the core of a vortex, this state supports a zero-energy Majorana mode, which moves to finite energy in the corresponding topologically trivial "strong-pairing" state. By braiding vortices in the "weak-pairing" state, unitary quantum gates can be applied to the Hilbert space of Majorana zero modes. For readout of the topological qubits, we propose realistic schemes suitable for atomic superfluids.
Tewari
Sumanta
S
Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD 20742, USA.
Das Sarma
S
S
Nayak
Chetan
C
Zhang
Chuanwei
C
Zoller
P
P