Published on *QUROPE* (http://qurope.eu)

Wed, 2014-01-22 13:44 - Christian Roos [1]

Date:

2013-12-23 - 2014-01-22

Reference:

ArXiv:1312.6583

URL:

In this paper we present a hybrid scheme for topological quantum computation in a system of cold atoms trapped in an atomic lattice. A topological qubit subspace is defined using Majorana fermions which emerge in a network of atomic Kitaev one-dimensional wires. We show how braiding can be efficiently implemented in this setup and propose a direct way to demonstrate the non-Abelian nature of Majorana fermions via a single parity measurement. We then introduce a proposal for the efficient, robust and reversible mapping of the topological qubits to a conventional qubit stored in a single atom. There, well-controlled standard techniques can be used to implement the missing gates required for universal computation. Our setup is complemented with an efficient non-destructive protocol to check for errors in the mapping.

**Links:**

[1] http://qurope.eu/users/roos

[2] http://arxiv.org/abs/1312.6583

[3] http://qurope.eu/category/qipc/qipc

[4] http://qurope.eu/category/qics/00-quantum-information-science/01-physics-and-information-science/0130r-quantum-states

[5] http://qurope.eu/category/qics/00-quantum-information-science/04-entanglement-many-body-systems

[6] http://qurope.eu/category/projects/ips/siqs

[7] http://qurope.eu/category/qics/00-quantum-information-science/05-cross-disciplinary-links/0580m-quantum-information-c