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Showing 2023 · quant-phShow all
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quant-ph2023★ 2 cited
Quantum metrology in a lossless Mach-Zehnder interferometer using entangled photon inputs
Shreyas Sadugol, Lev Kaplan
Using multi-photon entangled input states, we estimate the phase uncertainty in a noiseless Mach-Zehnder interferometer (MZI) using photon-counting detection. We assume a flat prio…
quant-ph2023
Quantum Entanglement & Purity Testing: A Graph Zeta Function Perspective
Zachary P. Bradshaw, Margarite L. LaBorde
We assign an arbitrary density matrix to a weighted graph and associate to it a graph zeta function that is both a generalization of the Ihara zeta function and a special case of t…