3 papers
quant-ph2026
Quantum-enhanced Network Tomography
Yufei Zheng, Zihao Gong, Saikat Guha +1
Network tomography refers to the use of inference techniques for inferring internal network states from end-to-end probes. Quantum probes, implemented by sending blocks of cohe…
quant-ph2026
Boosted linear-optical measurements on single-rail qubits with unentangled ancillas
Aqil Sajjad, Isack Padilla, Saikat Guha
Any quantum state of the radiation field, sliced in small non-overlapping space-time bins is a collection of single-rail qubits, each spanning the vacuum and single-photon Fock sta…
quant-ph2025
A Complete Characterization of Passive Unitary Normalizable (PUN) Gaussian States
Tiju Cherian John, Hemant K. Mishra, Saikat Guha
We provide a complete characterization of the class of multimode quantum Gaussian states that can be reduced to a tensor product of thermal states using only a passive unitary oper…