Demonstration of Nondeterministic Quantum Logic Operations Using Linear Optical Elements
Loading...
Author/Creator
Author/Creator ORCID
Date
2002-06-06
Type of Work
Department
Program
Citation of Original Publication
T. B. Pittman, B. C. Jacobs, and J. D. Franson, Demonstration of Nondeterministic Quantum Logic Operations Using Linear Optical Elements, Phys. Rev. Lett. 88, 257902, https://doi.org/10.1103/PhysRevLett.88.257902
Rights
This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
©2002 The American Physical Society
©2002 The American Physical Society
Subjects
Abstract
Knill, Laflamme, and Milburn [Nature (London) 409, 46 (2001)] recently showed that nondeterministic quantum logic operations could be performed using linear optical elements, additional photons (ancilla), and postselection based on the output of single-photon detectors. Here we report the experimental demonstration of two logic devices of this kind, a destructive controlled-NOT (CNOT) gate and a quantum parity check. These two devices can be combined with a pair of entangled photons to implement a conventional (nondestructive) CNOT that succeeds with a probability of 1/4.