Storing quantum states in bosonic dissipative networks

Details Storing quantum states in bosonic dissipative networks Storing quantum states in bosonic dissipative networks

2007-07-11

arxiv.org/abs/0707.1629v1

Physics

Quantum Physics

Scientific paper

10.1088/0953-4075/41/21/215506

Considering a network of dissipative quantum harmonic oscillators we deduce and analyze the optimum topologies which are able to store, for the largest period of time, a quantum superposition previously prepared in one of the network oscillators. The storage of the superposition is made dynamically, in that the state to be protected evolves through the network before being retrieved back in the oscillator where it was prepared. The decoherence time during the dynamic storage process is computed and we demonstrate that it is proportional to the number of oscillators in the network for a particular regime of parameters.

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