Zobrazeno 1 - 10
of 450
pro vyhledávání: '"Ulbricht H"'
Quantum mechanics predicts that massive particles exhibit wave-like behavior. Matterwave interferometry has been able to validate such predictions through ground-breaking experiments involving microscopic systems like atoms and molecules. The wavefun
Externí odkaz:
http://arxiv.org/abs/2408.09596
In 1971, Zel'dovich predicted the amplification of electromagnetic (EM) waves scattered by a rotating metallic cylinder, gaining mechanical rotational energy from the body. Since then, this phenomenon has been believed to be unobservable with electro
Externí odkaz:
http://arxiv.org/abs/2310.12191
Publikováno v:
Phys. Rev. Research 2, 043229 (2020)
We present experimental tests of dissipative extensions of spontaneous wave function collapse models based on a levitated micromagnet with ultralow dissipation. The spherical micromagnet, with radius $R=27$ $\mu$m, is levitated by Meissner effect in
Externí odkaz:
http://arxiv.org/abs/2008.06245
Autor:
Vinante, A., Carlesso, M., Bassi, A., Chiasera, A., Varas, S., Falferi, P., Margesin, B., Mezzena, R., Ulbricht, H.
Publikováno v:
Phys. Rev. Lett. 125, 100404 (2020)
Despite the unquestionable empirical success of quantum theory, witnessed by the recent uprising of quantum technologies, the debate on how to reconcile the theory with the macroscopic classical world is still open. Spontaneous collapse models are on
Externí odkaz:
http://arxiv.org/abs/2002.09782
Publikováno v:
Phys. Rev. Applied 13, 064027 (2020)
Levitated nanoparticles and microparticles are excellent candidates for the realization of extremely isolated mechanical systems, with a huge potential impact in sensing applications and in quantum physics. Magnetic levitation based on static fields
Externí odkaz:
http://arxiv.org/abs/1912.12252
Akademický článek
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Publikováno v:
Phys. Rev. A 100, 012119 (2019)
We consider a nanoparticle levitated in a Paul trap in ultrahigh cryogenic vacuum, and look for the conditions which allow for a stringent noninterferometric test of spontaneous collapse models. In particular we compare different possible techniques
Externí odkaz:
http://arxiv.org/abs/1903.08492
Akademický článek
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Autor:
Wan, C., Scala, M., Morley, G. W., Rahman, ATM. A., Ulbricht, H., Bateman, J., Baker, P. F., Bose, S., Kim, M. S.
Publikováno v:
Phys. Rev. Lett. 117, 143003 (2016)
We propose an interferometric scheme based on an untrapped nano-object subjected to gravity. The motion of the center of mass (c.m.) of the free object is coupled to its internal spin system magnetically, and a free flight scheme is developed based o
Externí odkaz:
http://arxiv.org/abs/1511.02738
What gravitational field is generated by a massive quantum system in a spatial superposition? This is one of the most important questions in modern physics, and after decades of intensive theoretical and experimental research, we still do not know th
Externí odkaz:
http://arxiv.org/abs/1507.05733