asymmetric nonlinear devices 1nonreciprocal transport 1quantum interference 1two-photon scattering 1waveguide quantum electrodynamics 1
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quant-ph2026
Revival of transport reciprocity via quantum interference in asymmetric nonlinear devices
Rupak Bag, Dibyendu Roy
The paper investigates how quantum interference can restore reciprocal photon transport in asymmetric nonlinear optical setups by analyzing two-photon scattering in waveguide–atom…
quant-ph2025
Quantum noise induced nonreciprocity for single photon transport in parity-time symmetric systems
Dibyendu Roy, G. S. Agarwal
We show nonreciprocal light propagation for single-photon inputs due to quantum noise in coupled optical systems with gain and loss. We consider two parity-time () sy…