Macroscopic quantum computation using Bose-Einstein condensates

Details Macroscopic quantum computation using Bose-Einstein condensates Macroscopic quantum computation using Bose-Einstein condensates

2011-03-28

arxiv.org/abs/1103.5512v1

Phys. Rev. A 85, 040306(R) (2012)

Physics

Quantum Physics

10 pages, 3 figures

Scientific paper

10.1103/PhysRevA.85.040306

Quantum computation using qubits made of two component Bose-Einstein condensates (BECs) is analysed. The use of BECs allows for an increase of energy scales via bosonic enhancement, resulting in gate operations that can be performed at a macroscopically large energy scale. The large energy scale of the gate operations results in quantum algorithms that may be executed at a time reduced by a factor of N, where N is the number of bosons per qubit. The encoding of the qubits allows for no intrinsic penalty on decoherence times. We illustrate the scheme by an application to Deutsch's and Grover's algorithms.

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