2 papers
quant-ph2020
A superconducting detector that counts microwave photons up to two
Andrii M. Sokolov, Frank K. Wilhelm
We propose a detector of microwave photons which can distinguish the vacuum state, one-photon state, and the states with two or more photons. Its operation is based on the two-phot…
quant-ph2019
Single-photon limit of dispersive readout of a qubit with a photodetector
Andrii M. Sokolov, Eugene V. Stolyarov
We study the dispersive readout of a qubit in the ultimate limit of a single-photon probe. The use of a single-photon probe avoids the errors due to nonorthogonality of coherent st…