Effect of Inter-Well Interactions on Non-Linear Beam Splitters for Matter-Wave Interferometers
| Autor: | Maria Luisa Chiofalo, Cosetta Baroni, Giacomo Gori, Andrea Trombettoni |
|---|---|
| Přispěvatelé: | Baroni, C., Gori, G., Chiofalo, M. L., Trombettoni, A. |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Atom interferometer
precision measurements FOS: Physical sciences Ultracold quantum gases 01 natural sciences Molecular physics 010305 fluids & plasmas law.invention ultracold quantum gases law 0103 physical sciences Strongly correlated fluid Sensitivity (control systems) 010306 general physics Scaling Atom interferometry Precision measurements Strongly correlated fluids Coupling Physics Condensed Matter::Quantum Gases Atomic interferometry - Bose Einstein Condensation - Quantum technologies - Precision measurements strongly correlated fluids Precision measurement Condensed Matter Physics lcsh:QC1-999 Electronic Optical and Magnetic Materials Dipole Nonlinear system Quantum Gases (cond-mat.quant-gas) atom interferometry Matter wave Condensed Matter - Quantum Gases Beam splitter lcsh:Physics |
| Zdroj: | Condensed Matter, Vol 5, Iss 31, p 31 (2020) Condensed Matter Volume 5 Issue 2 |
| ISSN: | 2410-3896 |
| Popis: | We study the non-linear beam splitter in matter-wave interferometers using ultracold quantum gases in a double-well configuration in presence of non-local interactions inducing inter-well density-density coupling, as they can be realized, e.g., with dipolar gases. We explore this effect after considering different input states, in the form of either coherent, or Twin-Fock, or NOON states. We first review the non-interacting limit and the case in which only the local interaction is present, including the study of sensitivity near the self-trapping threshold. Then, we consider the two-mode model in the presence of inter-well interactions and consider the scaling of the sensitivity as a function of the non-local coupling strength. Our analysis clearly shows that non-local interactions can compensate the degradation of the sensitivity induced by local interactions, so that they may be used to restore optimal sensitivity. SuperFluctuations 2019: Fluctuations and Highly Non Linear Phenomena in Superfluids and Superconductors, Padova, September 2-4, 2019 http://www.multisuper.org/superfluctuations-2019 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|