Computational synthesis of any n-qubit pure or mixed state

Lin Song; Colin P. Williams

doi:10.1117/12.486347

4 August 2003 Computational synthesis of any n-qubit pure or mixed state

Lin Song, Colin P. Williams

Proceedings Volume 5105, Quantum Information and Computation; (2003) https://doi.org/10.1117/12.486347
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Future quantum information processing devices will require the use of exotic quantum states, such as specially crafted entangled states, to achieve certain desired computations on demand. Thus far, synthesis schemes for such states have been devised on a case-by-case basis using ad hoc techniques. In this paper we present a systematic method for finding a quantum circuit that can synthesize any pure or mixed n-qubit state. We then give examples of the use of our algorithm for finding synthesis pathways for especially exotic quantum states such as maximal mixed states. It is not known how to prepare general instances of such states by other means. Thus our quantum state synthesis algorithm should be of use not only in quantum information processing, but also in experimental quantum physics.

Citation Download Citation

Lin Song and Colin P. Williams "Computational synthesis of any n-qubit pure or mixed state", Proc. SPIE 5105, Quantum Information and Computation, (4 August 2003); https://doi.org/10.1117/12.486347

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