Amplification of realistic Schrodinger-cat-state-like states by homodyne 
heralding

Laghaout, Amine; Neergaard-Nielsen, Jonas S.; Rigas, Ioannes; Kragh, Christian; Tipsmark, Anders; Andersen, Ulrik L.

doi:10.1103/PhysRevA.87.043826

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Amplification of realistic Schrodinger-cat-state-like states by homodyne heralding

MPS-Authors

/persons/resource/persons201000

Andersen, Ulrik L.
Quantum Information Processing, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Laghaout, A., Neergaard-Nielsen, J. S., Rigas, I., Kragh, C., Tipsmark, A., & Andersen, U. L. (2013). Amplification of realistic Schrodinger-cat-state-like states by homodyne heralding. PHYSICAL REVIEW A, 87(4): 043826. doi:10.1103/PhysRevA.87.043826.

Cite as: https://hdl.handle.net/11858/00-001M-0000-002D-6789-8

Abstract

We present a scheme for the amplification of Schrodinger cat states that collapses two smaller states onto their constructive interference via a homodyne projection. We analyze the performance of the amplification in terms of fidelity and success rate when the input consists of either exact coherent state superpositions or of photon-subtracted squeezed vacua. The impact of imprecise homodyne detection and of impure squeezing is quantified. We also assess the scalability of iterated amplifications. DOI: 10.1103/PhysRevA.87.043826