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9 papers · 1 filter
Coherence lifetimes of excitations in an atomic condensate due to the thin spectrum
T. Birol, T. Dereli, Ö. E. Müstecaplıoğlu +1
We study the quantum coherence properties of a finite sized atomic condensate using a toy-model and the thin spectrum model formalism. The decoherence time for a condensate in the…
High-Precision Thermodynamic and Critical Properties from Tensor Renormalization-Group Flows
Michael Hinczewski, A. Nihat Berker
The recently developed tensor renormalization-group (TRG) method provides a highly precise technique for deriving thermodynamic and critical properties of lattice Hamiltonians. The…
Haptic Manipulation of Microspheres Using Optical Tweezers Under the Guidance of Artificial Force Fields
Ibrahim Bukusoglu, Cagatay Basdogan, Alper Kiraz +1
Using optical tweezers and a haptic device, microspheres having diameters ranging from 3 to 4 um (floating in a fluid solution) are manipulated in order to form patterns of coupled…
Global Attractors and Determining Modes for the 3D Navier-Stokes-Voight Equations
Varga K. Kalantarov, Edriss S. Titi
We investigate the long-term dynamics of the three-dimensional Navier-Stokes-Voight model of viscoelastic incompressible fluid. Specifically, we derive upper bounds for the number…
Photonic Band Gap in the Triangular Lattice of BEC vortices
M. E. Tasgin, O. E. Mustecaplioglu, M. O. Oktel
We investigate the photonic bands of an atomic Bose-Einstein condensate with a triangular vortex lattice. Index contrast between the vortex cores and the bulk of the condensate is…
Exact Solutions in Five-Dimensional Axi-dilaton Gravity with Euler-Poincare Term
A. N. Aliev, H. Cebeci, T. Dereli
We examine the effective field equations that are obtained from the axi-dilaton gravity action with a second order Euler-Poincare term and a cosmological constant in all higher dim…