133 citations · 133 across the 1 of their papers we have counts for
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Classicality in discrete Wigner functions
Cecilia Cormick, Ernesto F. Galvao, Daniel Gottesman +2
Gibbons et al. [Phys. Rev. A 70, 062101(2004)] have recently defined a class of discrete Wigner functions W to represent quantum states in a Hilbert space with finite dimension. We…
Tomography and spectroscopy as quantum computations
Cesar Miquel, Juan Pablo Paz, Marcos Saraceno +3
Determining the state of a system and measuring properties of its evolution are two of the most important tasks a physicist faces. For the first purpose one can use tomography, a m…
Continuous Error Correction
Juan Pablo Paz, Wojciech Hubert Zurek
We propose a new approach to study the evolution of a quantum state that is encoded in a system which is continuously subject to the operations required to implement a quantum erro…
Why We Don't Need Quantum Planetary Dynamics: Decoherence and the Correspondence Principle for Chaotic Systems
Wojciech Hubert Zurek, Juan Pablo Paz
Violation of correspondence principle may occur for very macroscopic byt isolated quantum systems on rather short timescales as illustrated by the case of Hyperion, the chaotically…
Perfect Quantum Error Correction Code
Raymond Laflamme, Cesar Miquel, Juan Pablo Paz +1
We present a quantum error correction code which protects a qubit of information against general one qubit errors which maybe caused by the interaction with the environment. To acc…
Effects of Loss and Decoherence on a Simple Quantum Computer
Isaac L. Chuang, Raymond Laflamme, Juan-Pablo Paz
We investigate the impact of loss (amplitude damping) and decoherence (phase damping) on the performance of a simple quantum computer which solves the one-bit Deutsch problem. The…