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Gaussian quantum information

- C. Weedbrook, S. Pirandola, +4 authors S. Lloyd
- Computer Science, Physics
- 14 October 2011

TLDR

Linear optical quantum computing with photonic qubits

- P. Kok, W. Munro, K. Nemoto, T. Ralph, J. Dowling, G. Milburn
- Physics
- 24 January 2007

Linear optics with photon counting is a prominent candidate for practical quantum computing. The protocol by Knill, Laflamme, and Milburn [2001, Nature (London) 409, 46] explicitly demonstrates that… Expand

A Guide to Experiments in Quantum Optics

Classical Models of Light Experiments with Photons Quantum Models of Light Basic Optical Components Photo-currents: Generation and Detection The Laser Quantum Noise: Basic Measurements Sub-Poissonian… Expand

Quantum information with continuous variables

- T. Ralph
- Computer Science
- Conference Digest. International Quantum…
- 2000

TLDR

Nondeterministic Noiseless Linear Amplification of Quantum Systems

We introduce the concept of non‐deterministic noiseless linear amplification. We propose a linear optical realization of this transformation that could be built with current technology. We discuss… Expand

Demonstration of an all-optical quantum controlled-NOT gate

- J. O'Brien, G. Pryde, A. G. White, T. Ralph, D. Branning
- Materials Science, Medicine
- Nature
- 20 November 2003

TLDR

Linear optical controlled- NOT gate in the coincidence basis

- T. Ralph, N. Langford, T. B. Bell, A. G. White
- Physics
- 16 December 2001

We describe the operation and tolerances of a nondeterministic, coincidence basis, quantum controlled-NOT gate for photonic qubits. It is constructed solely from linear optical elements and requires… Expand

Continuous variable quantum cryptography: beating the 3 dB loss limit.

- C. Silberhorn, T. Ralph, N. Lütkenhaus, G. Leuchs
- Computer Science, Medicine
- Physical review letters
- 11 April 2002

TLDR

Tomography of quantum detectors

- J. Lundeen, Á. Feito, +6 authors I. Walmsley
- Physics
- 2009

Measurement connects the world of quantum phenomena to the world of classical events. It has both a passive role—in observing quantum systems—and an active one, in preparing quantum states and… Expand

Quantum computation with optical coherent states

- T. Ralph, A. Gilchrist, G. Milburn, W. Munro, S. Glancy
- Physics
- 1 June 2003

We show that quantum computation circuits using coherent states as the logical qubits can be constructed from simple linear networks, conditional photon measurements, and "small" coherent… Expand

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