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Controlling qubit arrays with anisotropic XXZ Heisenberg interaction by acting on a single qubit
Controlling qubit arrays anisotropic XXZ Heisenberg interaction acting single qubit
2010/11/9
We investigate anisotropic $XXZ$ Heisenberg spin-1/2 chains with control fields acting on one of the end spins, with the aim of exploring local quantum control in arrays of interacting qubits. In this...
Mimicking the probability distribution of a two-dimensional Grover walk with a single-qubit coin
Mimicking the probability distribution two-dimensional Grover walk single-qubit coin
2010/11/5
Multi-dimensional quantum walks usually require large coin spaces. Here we show that the non-localized case of the spatial density probability of the two-dimensional Grover walk can be obtained using ...
Keeping a Single Qubit Alive by Experimental Dynamic Decoupling
Single Qubit Experimental Dynamic Decoupling
2010/10/21
We demonstrate the use of dynamic decoupling techniques to extend the coherence time of a single memory qubit by nearly two orders of magnitude. By extending the Hahn spin-echo technique to correct fo...
Classical Information Capacities of Some Single Qubit Quantum Noisy Channels
classical information capacity quantum noisy channel Holevo-Schumacher-Westmoreland theorem
2007/8/15
2003Vol.39No.5pp.537-542DOI:
Classical Information Capacities of Some Single Qubit Quantum Noisy Channels
LIANG Xian-Ting
Department of Physics and Institute of Mathemat...