Ancilla-assisted quantum process tomography

J. B. Altepeter, D. Branning, E. Jeffrey, T. C. Wei, P. G. Kwiat, R. T. Thew, J. L. O'Brien, M. A. Nielsen, A. G. White

Research output: Contribution to journalArticlepeer-review

250 Citations (Scopus)
3 Downloads (Pure)


An overview is given of optical implementations of of SQPT, EAPT, and nonentangled AAPT for a variety of processes, including unitary, decohering, and non-trace-preserving operations. A theoretical result completely characterizing the class of states usable for AAPT is discussed.

Original languageEnglish
JournalPhysical Review Letters
Issue number19
Publication statusPublished - 16 May 2003
Externally publishedYes


Dive into the research topics of 'Ancilla-assisted quantum process tomography'. Together they form a unique fingerprint.

Cite this