Translator Disclaimer
24 August 2004 Weak measurement with a single qubit
Author Affiliations +
Weak measurement is a technique whereby the coupling between the measuring device and the observable is sufficiently weak that the uncertainty in a single measurement is large compared with the separation between the eigenvalues of the observable. It is found here that weak measurement can be achieved with a single qubit. An additional feature of using single qubits as weak measurement devices is that the entanglement that results between the measured and measuring qubits can be easily quantified. An analysis is provided of the effect of entanglement using an example similar to the Hardy paradox of double interferometers with positron-electron annihilation.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael J Steiner "Weak measurement with a single qubit", Proc. SPIE 5436, Quantum Information and Computation II, (24 August 2004);


How often must we apply syndrome measurements?
Proceedings of SPIE (May 21 2015)
Data fusion in entangled networks of quantum sensors
Proceedings of SPIE (May 02 2017)
Quantum interferometric sensors
Proceedings of SPIE (July 06 2004)
Finite temperature quantum algorithm and majorization
Proceedings of SPIE (March 27 2008)
Quantum decoherence and qubit devices
Proceedings of SPIE (May 08 2003)
Weak measurements, weak values, and entanglement
Proceedings of SPIE (May 21 2007)

Back to Top