8 papers
Conditional implementation of a quantum phase gate with distant atoms trapped in different optical cavities
XuBo Zou, W. Mathis
We propose a scheme for conditional implementation of a quantum phase gate by using distant atoms trapped in different optical cavities. Instead of direct interaction between atoms…
Quantum information processing and multi-qubit entanglement with Josephson-junction charge qubits in a thermal cavity
xubo zou
We propose a scheme to implement the two-qubit quantum phase gate with Josephson-junction charge qubits in a thermal cavity. In this scheme, the photon-number-dependent parts in th…
The non-deterministic quantum logic operation and teleportation of a vacuum and single photon superposition state via parametric amplifiers
Xu-Bo Zou, K. Pahlke, W. Mathis
We firstly present an all-optical scheme to implement the non-deterministic quantum logic operation of Knill, Laflamme and Milburn (Nature, 409, 46-52(2001)). In our scheme, squeez…
The generation of an entangled four-photon state from two pairs of entangled two-photon states by using linear optical elements
XuBo Zou, K. Pahlke, W. Mathis
We present a scheme to produce an entangled four-photon state from two pairs of entangled two-photon states. Such entangled four-photon states are equivalent to the quantum state o…
Quantum computation with trapped ions in strongly detuned optical cavity
XuBo Zou, K. Pahlke, W. Mathis
We propose a scheme to implement quantum phase gate for two ions trapped in optical cavity. It is shown that quantum phase gate can be implemented by applying a laser addressin…
Continuous variable quantum cloning via the Cavity QED with trapped ions
XuBo Zou, K. Pahlke, W. Mathis
We present a feasible scheme to use trapped ions Cavity QED system to implement optimal cloning machine of coherent state. In present scheme, as the ouput of the clone mac…