BEGIN:VCALENDAR
VERSION:2.0
PRODID:Data::ICal 0.22
BEGIN:VEVENT
DESCRIPTION:V.V. Nesvizhevsky\, Institut Laue-Langevin\n\nTwo phenomena hav
e been observed recently in experiments with slow neutrons: quantum states
of ultracold neutrons (UCN) in the Earth’s gravitational field [1] and
quantum states of cold neutrons (CN) in the centrifugal potential in the v
icinity of a curved mirror [2]. The first experiment presented the first o
bservation of quantum states of matter in a gravitational field\; the seco
nd one is also known as the neutron whispering gallery effect. They are re
lated by common experimental methods used\, by common mathematical descrip
tion\, but also by their applications in elementary particle physics\, in
quantum optics\, in surface science [3]. It is curious that these experime
nts present the first direct demonstration of the weak equivalence princip
le for an object in a quantum state. Much more precise measurements of/wit
h these phenomena are going to be performed in a recently constructed seco
nd-generation GRANIT spectrometer [4]. Analogous experiments could be prob
ably performed in future with anti-matter atoms [5-6]\, with interesting a
pplications in various domains of science.\n
\n
1. V.V. Nesvizhevsky
et al\, Nature 415\, 297 (2002)\; S. Baessler et al\, J. Phys. G 36\, 10
(2009).\n
2. V.V. Nesvizhevsky et al\, Nature Phys. 6\, 114 (2010).\n3. V.V. Nesvizhevsky\, Phys.-Uspekhi 53\, 645 (2010).\n
4. S. Baessle
r et al\, Compt. Rend. Phys. 12\, 707 (2011)\n
5. A.Yu. Voronin et al\,
Phys. Rev. A 83\, 032903 (2011).\n
6. A.Yu. Voronin et al\, Phys. Rev.
A 85\, 014902 (2012).
DTSTART:20130128T203000Z
LOCATION:Physics Building\, Room 204
SUMMARY:Quantum states of matter and anti-matter in gravitational and centr
ifugal potentials
END:VEVENT
END:VCALENDAR