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Mesoscopic Effects in Quantum Phases of Ultracold Quantum Gases in Optical Lattices
L. D. Carr, M. L. Wall, D. G. Schirmer +3
We present a wide array of quantum measures on numerical solutions of 1D Bose- and Fermi-Hubbard Hamiltonians for finite-size systems with open boundary conditions. Finite size eff…
Particle-Hole Asymmetry and Brightening of Solitons in A Strongly Repulsive BEC
Radha Balakrishnan, Indubala I. Satija, Charles W. Clark
We study solitary wave propagation in the condensate of a system of hard-core bosons with nearest-neighbor interactions. For this strongly repulsive system, the evolution equation…
Counterflow and paired superfluidity in one-dimensional Bose mixtures in optical lattices
Anzi Hu, L. Mathey, Ippei Danshita +3
We study the quantum phases of mixtures of ultra-cold bosonic atoms held in an optical lattice that confines motion or hopping to one spatial dimension. The phases are found by usi…
Quantum Many-Body Dynamics of Dark Solitons in Optical Lattices
R. V. Mishmash, I. Danshita, Charles W. Clark +1
We present a fully quantum many-body treatment of dark solitons formed by ultracold bosonic atoms in one-dimensional optical lattices. Using time-evolving block decimation to simul…
Blackbody-radiation shift in a 88Sr+ ion optical frequency standard
Dansha Jiang, Bindiya Arora, M. S. Safronova +1
The blackbody radiation (BBR) shift of the 5s - 4d_{5/2} clock transition in 88Sr+ is calculated to be 0.250(9) Hz at room temperature, T=300K, using the relativistic all-order met…
Collisional cooling of ultra-cold atom ensembles using Feshbach resonances
L. Mathey, Eite Tiesinga, Paul S. Julienne +1
We propose a new type of cooling mechanism for ultra-cold fermionic atom ensembles, which capitalizes on the energy dependence of inelastic collisions in the presence of a Feshbach…