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Quantum Mechanical Noise in an Interferometer

- C. Caves
- Physics
- 15 April 1981

The interferometers now being developed to detect gravitational waves work by measuring the relative positions of widely separated masses. Two fundamental sources of quantum-mechanical noise… Expand

Symmetric informationally complete quantum measurements

- J. Renes, R. Blume-Kohout, A. J. Scott, C. Caves
- Mathematics, Physics
- 13 October 2003

TLDR

Quantum limits on noise in linear amplifiers

- C. Caves
- Physics
- 15 October 1982

How much noise does quantum mechanics require a linear amplifier to add to a signal it processes? An analysis of narrow-band amplifiers (single-mode input and output) yields a fundamental theorem for… Expand

Quantum-Mechanical Radiation-Pressure Fluctuations in an Interferometer

- C. Caves
- Physics
- 14 July 1980

The interferometers now being developed to detect gravitational vaves work by measuring small changes in the positions of free masses. There has been a controversy whether quantum-mechanical… Expand

Quantum discord and the power of one qubit.

- A. Datta, Anil Shaji, C. Caves
- Physics, Medicine
- Physical review letters
- 4 September 2007

We use quantum discord to characterize the correlations present in the model called deterministic quantum computation with one quantum bit (DQC1), introduced by Knill and Laflamme [Phys. Rev. Lett.… Expand

ON THE MEASUREMENT OF A WEAK CLASSICAL FORCE COUPLED TO A QUANTUM MECHANICAL OSCILLATOR. I. ISSUES OF PRINCIPLE

- C. Caves, K. Thorne, R. Drever, V. Sandberg, M. Zimmermann
- Physics
- 1980

The monitoring of a quantum-mechanical harmonic oscillator on which a classical force acts is important in a variety of high-precision experiments, such as the attempt to detect gravitational… Expand

Universal state inversion and concurrence in arbitrary dimensions

- P. Rungta, V. Buzek, C. Caves, M. Hillery, G. Milburn
- Physics
- 7 February 2001

Wootters [Phys. Rev. Lett. 80, 2245 (1998)] has given an explicit formula for the entanglement of formation of two qubits in terms of what he calls the concurrence of the joint density operator.… Expand

Unknown Quantum States: The Quantum de Finetti Representation

We present an elementary proof of the quantum de Finetti representation theorem, a quantum analog of de Finetti’s classical theorem on exchangeable probability assignments. This contrasts with the… Expand

Quantum probabilities as Bayesian probabilities

In the Bayesian approach to probability theory, probability quantifies a degree of belief for a single trial, without any a priori connection to limiting frequencies. In this paper, we show that,… Expand

SEPARABILITY OF VERY NOISY MIXED STATES AND IMPLICATIONS FOR NMR QUANTUM COMPUTING

- S. Braunstein, C. Caves, R. Jozsa, N. Linden, S. Popescu, R. Schack
- Mathematics, Physics
- 6 November 1998

We give a constructive proof that all mixed states of N qubits in a sufficiently small neighborhood of the maximally mixed state are separable (unentangled). The construction provides an explicit… Expand

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