A quantum system can undergo a continuous phase transition at the absolute zero of
temperature as some parameter entering its Hamiltonian is varied. These transitions are …

The quantum dynamics of tunnel junctions with very small capacitance, such that k BT< e
2/2C, is investigated. We derive the quantum mechanical description from the microscopic …

Granular metals are arrays of metallic particles of a size ranging usually from a few to
hundreds of nanometers embedded into an insulating matrix. Metallic granules are often …

We introduce a model of the superconducting transition in a bad metal, and show that
quantum and classical phase fluctuations prevent long-range order unless the resistivity ρ …

The observation of metallic ground states in a variety of two-dimensional electronic systems
poses a fundamental challenge for the theory of electron fluids. Here evidence is analyzed …

Josephson-junction arrays are ideal model systems to study a variety of phenomena such as
phase transitions, frustration effects, vortex dynamics and chaos. In this review, we focus on …

We discuss an open driven-dissipative many-body system, in which the competition of
unitary Hamiltonian and dissipative Liouvillian dynamics leads to a nonequilibrium phase …

The evolution of superconductivity in ultrathin films of Sn, Pb, Ga, Al, and In has been
examined as a function of thickness and temperature. The films were grown in increments by …

The enormous experimental progress in atomic, molecular, and optical (AMO) physics
during the last decades allows us nowadays to isolate single, a few or even many-body …

We study a simple model of a two-dimensional s-wave superconductor in the presence of a
random potential as a function of disorder strength. We first use the Bogoliubov–de Gennes …