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  • CLEO/Europe and EQEC 2011 Conference Digest
  • OSA Technical Digest (CD) (Optica Publishing Group, 2011),
  • paper ED4_4

Experimental Demonstration of a Hadamard Gate for Coherent State Qubits

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In recent years coherent state qubits, |α〉 ± |−α〉 have gained much interest [1]. The main reason is the promise to realize a universal set of coherent state quantum gates with a relative low overhead using, only linear optics and photon counters [2]. A universal set of gates consists of a single mode and a two mode phase gate and a Hadamard gate. The Hadamard is the gate that transforms one set of basis states into the conjugate basis, e.g |± α〉 → |α〉 ± |− α〉. Here we present an experimental demonstration of a Hadamard gate for coherent state qubits. The implementation is based on the scheme proposed by Marek and Fiurasek [3].

© 2011 IEEE

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