Quantum information is vulnerable to environmental noise and experimental imperfections,
hindering the reliability of practical quantum information processors. Therefore, quantum …

Early experiments with transiting circular Rydberg atoms in a superconducting resonator laid
the foundations of modern cavity and circuit quantum electrodynamics, and helped explore …

Degenerate parametric amplifiers (DPAs) exhibit the unique property of phase-sensitive
gain and can be used to noiselessly amplify small signals or squeeze field fluctuations …

Electromechanical resonators operating in the sub-terahertz regime could be of use in the
development of future communication systems because they support extremely fast data …

Superconducting parametric amplifiers are crucial components in microwave quantum
circuits for enabling quantum-limited signal readout. The best-performing such amplifiers are …

Nonlinear superconducting devices, typically based on Josephson-junction (JJ)
nonlinearities, are the basis for superconducting quantum electronics, enabling, eg, the …

Niobium offers the benefit of increased operating temperatures and frequencies for
Josephson junctions, which are the core component of superconducting devices. However …

In open quantum systems, first-and second-order dissipative phase transitions (DPTs) can
emerge in the thermodynamic limit from the competition between unitary evolution, driving …

A quantum-limited amplifier enables the amplification of weak signals while introducing
minimal noise dictated by the principles of quantum mechanics. Such amplifiers serve a …

Continuous-variable entangled radiation known as Einstein-Podolsky-Rosen (EPR) states
are spatially separated quantum states with applications ranging from quantum teleportation …