Equations of state from individual one-dimensional Bose gases
| Autor: | C. J. Billington, Andika Putra, Ian B. Spielman, Francisco Salces-Carcoba, Seiji Sugawa, Yuchen Yue |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Equation of state Atomic Physics (physics.atom-ph) FOS: Physical sciences General Physics and Astronomy Monotonic function 01 natural sciences Physics - Atomic Physics 010309 optics Trap (computing) Quantum Gases (cond-mat.quant-gas) Quantum electrodynamics 0103 physical sciences Local-density approximation 010306 general physics Degeneracy (mathematics) Condensed Matter - Quantum Gases Absolute zero Evaporative cooler |
| Popis: | We trap individual 1D Bose gases and obtain the associated equation of state by combining calibrated confining potentials with in-situ density profiles. Our observations agree well with the exact Yang-Yang 1D thermodynamic solutions under the local density approximation. We find that our final 1D system undergoes inefficient evaporative cooling that decreases the absolute temperature, but monotonically reduces a degeneracy parameter. 19 pages including supplementary material, 5 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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