We demonstrate an efficient and continuous microwave photon-to-electron converter with
large quantum efficiency (83%) and low dark current. These unique properties are enabled …

Recent advancements in circuit quantum electrodynamics have enabled precise
manipulation and detection of a single energy quantum in quantum systems. A quantum …

Achieving fast and precise initialization of qubits is a critical requirement for the successful
operation of quantum computers. The combination of engineered environments with all …

We use a transmon qubit and its dispersively coupled readout resonator to measure the
Fock state populations of another microwave resonator, to which we have attached a …

Photoelectric detectors cover a wide frequency spectrum spanning from the far ultraviolet to
the infrared light with high sensitivity, large quantum efficiency and low dark current. The …

Single photon detectors at visible frequencies have been essential tools in many areas of
quantum technology, such as quantum key distribution or quantum optics. However …

Heat engines are universally utilized devices that convert heat into work. Whereas classical
systems are well-explored, quantum systems provide novel insights into the fundamental …

Superconducting circuits provide one of the leading architectures for the realization of a
large-scale quantum computer, with potential future applications, eg, in quantum physics …

Superconducting quantum computers have emerged as a popular field of research during
the recent years, showing rapid improvement in qubit quality and scalability. As the number …