Continuous quantum phase transitions
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 …
temperature as some parameter entering its Hamiltonian is varied. These transitions are …
Quantum coherent effects, phase transitions, and the dissipative dynamics of ultra small tunnel junctions
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 …
2/2C, is investigated. We derive the quantum mechanical description from the microscopic …
Quantum phase transitions
S Sachdev - Physics world, 1999 - iopscience.iop.org
NATURE abounds with phase transitions. The boiling and freezing of water are everyday
examples of phase transitions, as are more exotic processes such as superconductivity and …
examples of phase transitions, as are more exotic processes such as superconductivity and …
Onset of superconductivity in the two-dimensional limit
The onset of superconductivity in homogeneous ultrathin films is found to occur when their
normal-state sheet resistance falls below a value close to h/4 e 2, the quantum resistance for …
normal-state sheet resistance falls below a value close to h/4 e 2, the quantum resistance for …
Granular electronic systems
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 …
hundreds of nanometers embedded into an insulating matrix. Metallic granules are often …
Quantum phase transitions and vortex dynamics in superconducting networks
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 …
phase transitions, frustration effects, vortex dynamics and chaos. In this review, we focus on …
Dynamical phase transitions and instabilities in open atomic many-body systems
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 …
unitary Hamiltonian and dissipative Liouvillian dynamics leads to a nonequilibrium phase …
Onset of superconductivity in ultrathin granular metal films
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 …
examined as a function of thickness and temperature. The films were grown in increments by …
Engineered open systems and quantum simulations with atoms and ions
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 …
during the last decades allows us nowadays to isolate single, a few or even many-body …
Signatures of a strange metal in a bosonic system
Fermi liquid theory forms the basis for our understanding of the majority of metals: their
resistivity arises from the scattering of well defined quasiparticles at a rate where, in the low …
resistivity arises from the scattering of well defined quasiparticles at a rate where, in the low …