Fast coherent splitting of Bose-Einstein condensates
Preparation of nontrivial quantum states without introducing unwanted excitations or decoherence remains a central challenge in utilizing ultracold atomic systems for quantum simulation. We employ optimal control methods to realize fast, coherent splitting of a one-dimensional Bose-Einstein condensate, achieving negligible classical excitations while preserving quantum correlations. Furthermore, we explore two-step protocols in which controlled classical motion is first induced and subsequently suppressed via tailored control sequences. Our experiments highlight the potential of optimal control for quantum state engineering and dynamical control in many-body quantum systems.
Authors
- Jörg Schmiedmayer (ORCID: https://orcid.org/0000-0001-7799-5614)
- Andreas Deutschmann (ORCID: https://orcid.org/0000-0001-7602-9211)
- Andreas Kugi (ORCID: https://orcid.org/0000-0001-7995-1690)
- Nikolaus Würkner (ORCID: https://orcid.org/0009-0006-5505-1042)
- Maximilian Prüfer (ORCID: https://orcid.org/0000-0001-5768-3517)
- Yevhenii Kuriatnikov (ORCID: https://orcid.org/0000-0002-2087-1108)
- K. Kumaran (ORCID: https://orcid.org/0009-0003-8203-326X)
- Tiantian Zhang
- M. Venkat Ramana
Institutions
- AIT Austrian Institute of Technology GmbH (AT)
- TU Wien (AT)
- Vienna Center for Quantum Science and Technology (AT)
Publication Details
- Journal
- Physical Review Research
- Published
- 2025-09-29
- DOI
- https://doi.org/10.1103/pjqv-r3p6
- Citations
- 2
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 2.49