Dissipative quantum phase transition has been widely believed to occur in a Josephson
junction coupled to a resistor despite a lack of concrete experimental evidence. Here, on the …

The physics of a single Josephson junction coupled to a resistive environment is a long-
standing fundamental problem at the center of an intense debate, strongly revived by the …

Although quantum mechanics applies to many macroscopic superconducting devices, one
basic prediction remained controversial for decades. Namely, a Josephson junction …

We study the phase diagram of a resistively shunted Josephson junction (RSJJ) in the
framework of the boundary sine-Gordon model. Using the nonperturbative functional …

The Josephson junction is a building block of quantum circuits. Its behavior, well understood
when treated as an isolated entity, is strongly affected by coupling to an electromagnetic …

Fractionally charged excitations play a central role in condensed matter physics, and can be
probed in different ways. If transport occurs via dissipationless supercurrents, they manifest …

Superconductivity is reformulated as a phenomenon in which a stable velocity field is
created by a U (1) phase neglected by Dirac in the Schrödinger representation of quantum …

A nonperturbative approach is developed to analyze superconducting circuits coupled to
quantized electromagnetic continuum within the framework of the functional renormalization …

Quantum circuit theory is a powerful tool to describe superconducting circuits. In its
language, quantum phase slips (QPSs) are considered to be the exact dual to the …

A fundamentally revised version of superconductivity theory has been put forward since the
standard theory of superconductivity based on the BCS theory cannot explain …