We show that the use of probabilistic noiseless amplification in entangled coherent state-based schemes for the test of quantum nonlocality provides substantial advantages. The threshold amplitude to falsify a Bell-CHSH nonlocality test, in fact, is significantly reduced when amplification is embedded into the test itself. Such a beneficial effect holds also in the presence of detection inefficiency. Our study helps in affirming noiseless amplification as a valuable tool for coherent information processing and the generation of strongly nonclassical states of bosonic systems.
|Number of pages||6|
|Journal||Physical Review A (Atomic, Molecular, and Optical Physics)|
|Publication status||Published - 10 May 2013|
- QUANTUM NONLOCALITY
- COHERENT STATES
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics