Nanoparticle Interferometer by Throw and Catch
Wardak, Jakub (University of Southampton. School of Physics and Astronomy)
Georgescu, Tiberius (University of Southampton. School of Physics and Astronomy)
Gasbarri, Giulio (Universitat Autònoma de Barcelona. Departament de Física)
Belenchia, Alessio (Queen's University)
Ulbricht, Hendrik (University of Southampton. School of Physics and Astronomy)

Data:	2024
Resum:	Matter wave interferometry with increasingly larger masses could pave the way to understanding the nature of wavefunction collapse, the quantum to classical transition, or even how an object in a spatial superposition interacts with its gravitational field. In order to improve upon the current mass record, it is necessary to move into the nanoparticle regime. In this paper, we provide a design for a nanoparticle Talbot-Lau matter wave interferometer that circumvents the practical challenges of previously proposed designs. We present numerical estimates of the expected fringe patterns that such an interferometer would produce, considering all major sources of decoherence. We discuss the practical challenges involved in building such an experiment, as well as some preliminary experimental results to illustrate the proposed measurement scheme. We show that such a design is suitable for seeing interference fringes with (Formula presented. ) amu SiO particles and that this design can be extended to even (Formula presented. ) amu particles by using flight times below the typical Talbot time of the system.
Ajuts:	European Commission 766900 European Commission 10032223 Agencia Estatal de Investigación PCI2019-111869-2 Agencia Estatal de Investigación PID2019-107609GB-I00 Agencia Estatal de Investigación PID2022-141283NB-I00
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Matter wave interferometry ; Levitated optomechanics ; Quantum superposition
Publicat a:	Atoms, Vol. 12, Issue 2 (February 2024) , art. 7, ISSN 2218-2004

DOI: 10.3390/atoms12020007

18 p, 1.8 MB

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