Syed M. Assad

Quantum enhancement of signal-to-noise ratio for arbitrary coherent states using heralded linear amplifiers

2017

We present an experimental enhancement of signal-to-noise ratio for arbitrary coherent states using a noise-reduced linear amplifier that profitably combines a heralded measurement-based noiseless linear amplifier and a deterministic linear amplifier. The concatenation of two …

Entanglement swapping via lossy channels using photon-number-encoded states

2024 · arXiv (Cornell University)

Entanglement shared between distant parties is a key resource in quantum networks. However, photon losses in quantum channels significantly reduce the success probability of entanglement sharing, which scales quadratically with the channel transmission. Quantum repeaters …