Visualizing the connection between edge states and the mobility edge in adiabatic and nonadiabatic topological charge transport [PDF]
The ability to pump quantized amounts of charge is one of the hallmarks of topological materials. An archetypical example is Laughlin's gauge argument for transporting an integer number of electrons between the edges of a quantum Hall cylinder upon ...
Schreck, F. +10 more
core +1 more source
Kuhn Losses Regained: Van Vleck from Spectra to Susceptibilities [PDF]
We discuss the early career of John H. Van Vleck (1899-1980), one of the earliest American quantum theorists who shared the 1977 Nobel prize with his student Philip W. Anderson and Sir Nevill Mott. In particular, we follow Van Vleck's trajectory from his
Midwinter, Charles, Janssen, Michel
core
Deterministic numerical solutions of the Boltzmann equation using the fast spectral method [PDF]
The Boltzmann equation describes the dynamics of rarefied gas flows, but the multidimensional nature of its collision operator poses a real challenge for its numerical solution. In this paper, the fast spectral method [36], originally developed by Mouhot
Reese, Jason M. +6 more
core +1 more source
Quantum Information Processing with Continuous Variables and Atomic Ensembles [PDF]
Quantum information theory promises many advances in science and technology. This thesis presents three different results in quantum information theory. The first result addresses the theoretical foundations of quantum metrology.
Zwierz, Marcin
core
Dynamics in Cold Atomic Gases: Resonant Behaviour of the Quantum Delta-Kicked Accelerator and Bose-Einstein Condensates in Ring Traps [PDF]
In this thesis, the dynamics of cold, trapped atomic gases are investigated, and the prospects for exploiting their nonlinear dynamics for inertial sensing are discussed.
Halkyard, Paul Lee, HALKYARD, PAUL,LEE
core
Light storage and control of photon-photon interactions in a cold Rydberg gas [PDF]
The effect of strong interatomic interactions on an optical field stored in Rydberg states of a cold atomic gas is investigated. Due to their large dipole moments Rydberg atoms interact very strongly with each other.
MAXWELL, DANIEL,THOMAS
core
Excited state spatial distributions in a cold strontium gas [PDF]
This thesis describes the development of a new technique for measuring the spatial distribution of Rydberg atoms in a cold strontium gas. Strontium atoms are cooled and trapped in a magneto-optical trap and coherently excited to Rydberg states in a two ...
LOCHEAD, GRAHAM
core
Thermalization and breakdown of thermalization in photon condensates
The authors acknowledge financial support from EPSRC program “TOPNES” (Grant No. EP/I031014/1) and EPSRC (Grant No. EP/G004714/2). P.G.K. acknowledges support from EPSRC (Grant No.
Kirton, Peter George +1 more
core +1 more source
Bounds on the complex zeros of (Di)Chromatic polynomials and Potts-model partition functions
We show that there exist universal constants C(r) such that, for all loopless graphs G of maximum degree less than or equal to r, the zeros (real or complex) of the chromatic polynomial P-G(q) lie in the disc \q\ 7.963907r.
Sokal, AD
core
Bright solitary waves and non-equilibrium dynamics in atomic Bose-Einstein condensates [PDF]
In this thesis we investigate the static properties and non-equilibrium dynamics of bright solitary waves in atomic Bose-Einstein condensates in the zero-temperature limit, and we investigate the non-equilibrium dynamics of a driven atomic Bose-Einstein ...
BILLAM, THOMAS,PAUL +2 more
core

