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Scanning SQUID Study of Vortex Manipulation by Local Contact
Published on: February 1, 2017
Quantum computation using vortices and majorana zero modes of a px + ipy superfluid of fermionic cold atoms
Sumanta Tewari1, S Das Sarma, Chetan Nayak
1Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, MD 20742, USA.
Abstract:
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.
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