Outputs (5)

Progress towards quantum-enhanced interferometry with harmonically trapped quantum matter-wave bright solitons (2016)
Journal Article
Gertjerenken, B., Wiles, T., & Weiss, C. (2016). Progress towards quantum-enhanced interferometry with harmonically trapped quantum matter-wave bright solitons. Physical Review A, 94(5), Article 053638. https://doi.org/10.1103/physreva.94.053638

We model the dynamics of attractively interacting ultracold bosonic atoms in a quasi-one-dimensional wave guide with additional harmonic trapping. Initially, we prepare the system in its ground state and then shift the zero of the harmonic trap and s... Read More about Progress towards quantum-enhanced interferometry with harmonically trapped quantum matter-wave bright solitons.

Grand-canonical condensate fluctuations in weakly interacting Bose-Einstein condensates of light (2016)
Journal Article
Weiss, C., & Tempere, J. (2016). Grand-canonical condensate fluctuations in weakly interacting Bose-Einstein condensates of light. Physical Review E, 94(4), Article 042124. https://doi.org/10.1103/physreve.94.042124

Grand-canonical fluctuations of Bose-Einstein condensates of light are accessible to state-of-the-art experiments [J. Schmitt et al., Phys. Rev. Lett. 112, 030401 (2014).]. We phenomenologically describe these fluctuations by using the grand-canonica... Read More about Grand-canonical condensate fluctuations in weakly interacting Bose-Einstein condensates of light.

Center-of-mass motion as a sensitive convergence test for variational multimode quantum dynamics (2016)
Journal Article
Cosme, J., Weiss, C., & Brand, J. (2016). Center-of-mass motion as a sensitive convergence test for variational multimode quantum dynamics. Physical Review A, 94(4), Article 043603. https://doi.org/10.1103/physreva.94.043603

Multimode expansions in computational quantum dynamics promise convergence toward exact results upon increasing the number of modes. Convergence is difficult to ascertain in practice due to the unfavorable scaling of required resources for many-parti... Read More about Center-of-mass motion as a sensitive convergence test for variational multimode quantum dynamics.

Quantum reflection of bright solitary matter waves from a narrow attractive potential (2016)
Journal Article
Marchant, A., Billam, T., Yu, M., Rakonjac, A., Helm, J., Polo, J., …Cornish, S. (2016). Quantum reflection of bright solitary matter waves from a narrow attractive potential. Physical Review A, 93(2), Article 021604(R). https://doi.org/10.1103/physreva.93.021604

We report the observation of quantum reflection from a narrow attractive potential using bright solitary matter waves formed from a Rb 85 Bose-Einstein condensate. We create the attractive potential using a tightly focused, red-detuned laser beam, an... Read More about Quantum reflection of bright solitary matter waves from a narrow attractive potential.

Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space (2016)
Journal Article
Weiss, C., Cornish, S., Gardiner, S., & Breuer, H. (2016). Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space. Physical Review A, 93(1), Article 103605. https://doi.org/10.1103/physreva.93.013605

We show that the spreading of the center-of-mass density of ultracold attractively interacting bosons can become superballistic in the presence of decoherence, via one-, two-, and/or three-body losses. In the limit of weak decoherence, we analyticall... Read More about Superballistic center-of-mass motion in one-dimensional attractive Bose gases: Decoherence-induced Gaussian random walks in velocity space.