4 papers
Classical capacity of quantum non-Gaussian attenuator and amplifier channels
Zacharie Van Herstraeten, Saikat Guha, Nicolas J. Cerf
We consider a quantum bosonic channel that couples the input mode via a beam splitter or two-mode squeezer to an environmental mode that is prepared in an arbitrary state. We inves…
Majorization theoretical approach to entanglement enhancement via local filtration
Zacharie Van Herstraeten, Nicolas J. Cerf, Saikat Guha +1
From the perspective of majorization theory, we study how to enhance the entanglement of a two-mode squeezed vacuum (TMSV) state by using local filtration operations. We present se…
Bayesian Greedy Receiver for Pulse Position Modulation without an Error Floor under Thermal Noise
Leo Bia, Christos N. Gagatsos, Saikat Guha
We investigate quantum receiver architectures for demodulation -ary Pulse Position Modulation under thermal noise and photon-starved conditions. Building on the greed receiver f…
Bayesian quantum estimation of the separation of two incoherent point sources
Boyu Zhou, Saikat Guha, Christos N. Gagatsos
We address the estimation problem of the separation of two arbitrarily close incoherent point sources from the quantum Bayesian point of view, i.e., when a prior probability distri…