Diffusion and transfer of entanglement in an array of inductively coupled flux qubits
arXiv:0707.1805 · doi:10.1103/PhysRevB.76.052501
Abstract
A theoretical scheme to generate multipartite entangled states in a Josephson planar-designed architecture is reported. This scheme improves the one published in [Phys. Rev. B 74, 104503 (2006)] since it speeds up the generation of W entangled states in an MxN array of inductively coupled Josephson flux qubits by reducing the number of necessary steps. In addition, the same protocol is shown to be able to transfer the W state from one row to the other.
5 pages, 1 figure, to be published on Phys. Rev. B 2007
References in corpus (14)
- Quantum state engineering with Josephson-junction devices
- The Physical Implementation of Quantum Computation
- Superconducting Circuits and Quantum Information
- Demonstration of conditional gate operation using superconducting charge qubits
- Evidence for entangled states of two coupled flux qubits
- Controllable coupling between flux qubits
- NMR-like control of a quantum bit superconducting circuit
- Entangling flux qubits with a bipolar dynamic inductance
- Tomographic measurements on superconducting qubit states
- Direct Josephson coupling between superconducting flux qubits
- On the generation of multipartite entangled states in Josephson architectures
- Characterization of a fabrication process for the integration of superconducting qubits and RSFQ circuits
- Decoherence of Flux Qubits Coupled to Electronic Circuits
- Tunable Flux Qubit manipulated by fast pulses: operating requirements, dissipation and decoherence