Kazuki Koshino

TL;DR: In this paper, the authors considered a continuous measurement of the decay of an excited atom by a photodetector that detects a photon emitted from the atom upon decay, and showed that the form factor is renormalized as a backaction of the measurement, through which the decay dynamics is modified.

TL;DR: These results demonstrate that the cooperative intersystem crossing mediated by spin-lattice interaction plays a key role in the driving process of a new class of nonequilibrium phenomena so called photoinduced phase transition.

TL;DR: In this article, the authors demonstrate the detection of a single microwave photon propagating through a waveguide using an impedance-matched artificial Λ system comprising the dressed states of a driven superconducting qubit coupled to a microwave resonator.

TL;DR: In this paper, the authors implemented a deterministic entangling gate between a superconducting qubit and an itinerant microwave photon reflected by a cavity containing the qubit, which can serve as a building block for quantum networks connecting distant qubit modules as well as a microwave-photon-counting device for multiple photon signals.

TL;DR: This work demonstrates the detection of a single microwave photon propagating through a waveguide using an impedance-matched artificial Λ system comprising the dressed states of a driven superconducting qubit coupled to a microwave resonator.