83 citations · 422 across the 16 of their papers we have counts for
8 papers · 2 filters
Proposal for optical parity state re-encoder
Y. X. Gong, A. J. F. Hayes, G. C. Guo +1
We propose a re-encoder to generate a refreshed parity encoded state from an existing parity encoded state. This is the simplest case of the scheme by Gilchrist et al. (Phys. Rev.…
Unitary Solution to a Quantum Gravity Information Paradox
T. C. Ralph
We consider a toy model of the interaction of a qubit with an exotic space-time containing a time-like curve. Consistency seems to require that the global evolution of the qubit be…
Practical effects in the preparation of cluster states using weak non-linearities
Peter P. Rohde, William J. Munro, Timothy C. Ralph +2
We discuss experimental effects in the implementation of a recent scheme for performing bus mediated entangling operations between qubits. Here a bus mode, a strong coherent state,…
Comparison of architectures for approximating number-resolving photo-detection using non-number-resolving detectors
Peter P. Rohde, James G. Webb, Elanor H. Huntington +1
Number-resolving photo-detection is necessary for many quantum optics experiments, especially in the application of entangled state preparation. Several schemes have been proposed…
Quantum superpositions and entanglement of thermal states at high temperatures and their applications to quantum information processing
Hyunseok Jeong, Timothy C. Ralph
We study characteristics of superpositions and entanglement of thermal states at high temperatures and discuss their applications to quantum information processing. We introduce th…
Violation of Bell's inequality using classical measurements and non-linear local operations
Magdalena Stobińska, Hyunseok Jeong, Timothy C. Ralph
We find that Bell's inequality can be significantly violated (up to Tsirelson's bound) with two-mode entangled coherent states using only homodyne measurements. This requires Kerr…