3 February 2004 Number-phase teleportation and the Heisenberg limit in interferometry: a paradox and some surprises
Author Affiliations +
Following previous studies by Milburn and Braunstein, and Cochrane, Milburn, and Munro, we consider number-phase teleportation protocols. We investigate the use, as the teleportation quantum channel, of two-mode states with a perfectly well defined phase difference and number sum, which are also suitable for Heisenberg-limited interferometry. We show that intuition based on squeezing of these variables, which is commonly used to derive entangled states using the EPR paradox, can fail in this case to yield suitable teleportation channels. We show that the domain of failure is in fact of size 1/N, N being the total number of photons. We also point out another way of generating simpler analogs of number-sum/phase-difference eigenstates.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Olivier Pfister, Ngoc-Khanh Tran, "Number-phase teleportation and the Heisenberg limit in interferometry: a paradox and some surprises", Proc. SPIE 5161, Quantum Communications and Quantum Imaging, (3 February 2004); doi: 10.1117/12.504784; https://doi.org/10.1117/12.504784


A phase-unlocked Hong-Ou-Mandel interferometer
Proceedings of SPIE (May 28 2013)
Entanglement of two-mode Schrödinger cats
Proceedings of SPIE (May 21 2018)
Methods for scalable optical quantum computation
Proceedings of SPIE (May 25 2005)
Three-mode squeezing: SU(1,1) symmetry
Proceedings of SPIE (June 07 2007)
Quantum noise and probabilistic teleportation
Proceedings of SPIE (May 16 2003)

Back to Top