Bose-Einstein
High temperature Bose-Einstein condensation
... Bose-Einstein condensation (BEC) was predicted right after the introduction of Bose statistics [1]. However, it took 70 years to observe BEC experimentally [2]. The main difficulty for obtaining BEC in ...
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Generating and observing soliton dynamics in Bose Einstein Condensates
... In Chapters 3 and 4 a protocol was developed for precise one-dimensional control of the density and phase of the macroscopic wavefunction of a Bose-Einstein condensate. A necessary requirement of any ...
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Fate of a gray soliton in a quenched Bose-Einstein condensate.
... Ultracold atomic systems have long been attracting the attention of research laboratories for the investigation of nonlinear phenomena [1]. One of the quintessential ob- jects in nonlinear dynamics is the soliton, a ...
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Fluctuations and temperature effects in bose-einstein condensation★
... Abstract. The modeling of cold atoms systems has known an increasing interest in the theoretical physics community, after the first experimental realizations of Bose Einstein condensates, some twenty years ...
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Creation of coherence in Bose-Einstein condensates by atom detection
... One specific topic which has been frequently investi- gated is the question of the coherence properties [4,5] of Bose-Einstein condensates as established in interference experiments [6,7]. The underlying ...
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Theory of elementary excitations in unstable Bose-Einstein condensates
... ing, we should complement the flow component (4.1) in the z direction by appropriate components in the x and y directions, in order to obey the continuity of the flow. But as long as we focus on effects on length scales ...
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Bogoliubov theory of the Hawking effect in Bose-Einstein condensates
... The non-condensed atoms are Planck-distributed with the Hawking temperature (1). Therefore, as soon as the condensate flows through the nozzle, breaking the speed of sound, a thermal cloud of atoms is formed. This effect ...
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An Evaluation of Critical Frequency of Vortex as a Function of Number of Atoms N in Bose Einstein Condensates
... Super fluidity is one of the most spectacular consequences of Bose-Einstein condensation. However, the explicit connection between super fluidity and BEC is not trivial and has been the object of a ...
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Bose –Einstein Condensation in Complex networks related to Consciousness
... follow Bose Statistics and can undergo Bose-Einstein condensation ...equilibrium Bose gas (Huang, 1987), neurons mapping to energy levels and gap junctions corresponding to ...undergo ...
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Nonlinear and chaotic dynamics of a Bose-Einstein condensate in an optical cavity
... between Bose-Einstein condensates (BECs) and optical fields has been a subject of intense activity and interest since the first realisation of BECs in the mid-1990s [1, ...
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Analog quantum simulation of gravitational waves in a Bose-Einstein condensate
... We show how to vary the physical properties of a Bose-Einstein condensate (BEC) in order to mimic an effective gravitational-wave spacetime. In particular, we focus in the simulation of the recently ...
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Neutral impurities in a Bose-Einstein condensate for simulation of the Fröhlich-polaron
... the Bose polaron by immersion of single, well-controllable neutral Cs impurities into a Rb Bose-Einstein condensate ...Fröhlich-type Bose polarons in the low and intermediate coupling regime ...
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Bose-Einstein Condensation Controlled by (HOP+OLP) Trapping Potentials
... In this study, we examine and extend the analysis of Bose-Einstein condensation in an external harmonic potential applied along X-axis, and optical lattice potentials applied along Y-axis. The two- ...
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Elementary excitations of a Bose-Einstein condensate in an effective magnetic field
... in which case B = ∇ × A = 0 so that the effective mag- netic field is zero throughout the cloud (in the same way that a velocity field proportional to 1/r around a vor- tex still satisfies the irrotationality criterion ...
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Quantum threshold for optomechanical self-structuring in a Bose-Einstein condensate
... Theoretical analysis of the optomechanics of degenerate bosonic atoms with a single feedback mirror shows that self-structuring occurs only above an input threshold which is quantum-mechanical in origin. This threshold ...
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Nonclassical scissors mode of a vortex lattice in a Bose Einstein condensate
... rotating Bose-Einstein condensates: above a critical rota- tion frequency of the anisotropic trap, it was observed ex- perimentally that vortices enter the condensate and settle into a regular lattice ...a ...
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BOGOLIUBOV TRANSFORMATIONS AND QUANTUM DECOHERENCE IN AN ATOMIC BOSE EINSTEIN CONDENSATE
... After the initial prediction of possibility of macroscopic occupa- tion of the single-particle ground state by many photons [1] or by massive particles [2], it took more than seventy years to develop suf- ficient ...
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Quantum theory of multimode exciton polariton Bose Einstein Condensation
... and Bose-Einstein condensation (BEC) in cold atomic gases, condensation in other, more subtle, quasiparticle systems [Mosk 62, Demo 06] presents a rich panel of theoretical challenges and ...
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The τ-model of Bose-Einstein Correlations: Some recent results
... the Bose-Einstein correlation function on track and jet multiplicity, pair transverse momen- tum and pair rapidity, using a parametrization which has been found [1] to describe well ...
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Polarization dynamics in a photon Bose Einstein condensate
... a Bose-Einstein condensate [1, ...a Bose-Einstein distri- bution of the photon energy, as long as they can be ab- sorbed and re-emitted many times before escaping the ...
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