923 research outputs found
Constructing KMS states from infinite-dimensional spectral triples
We construct KMS-states from -summable semifinite spectral
triples and show that in several important examples the construction coincides
with well-known direct constructions of KMS-states for naturally defined flows.
Under further summability assumptions the constructed KMS-state can be computed
in terms of Dixmier traces. For closed manifolds, we recover the ordinary
Lebesgue integral. For Cuntz-Pimsner algebras with their gauge flow, the
construction produces KMS-states from traces on the coefficient algebra and
recovers the Laca-Neshveyev correspondence. For a discrete group acting on its
Stone-\v{C}ech boundary, we recover the Patterson-Sullivan measures on the
Stone-\v{C}ech boundary for a flow defined from the Radon-Nikodym cocycle.Comment: 66 page
An experimental demonstration of single photon nonlocality
In this letter we experimentally implement a single photon Bell test based on
the ideas of S. Tan et al. [Phys. Rev. Lett., vol. 66, 252 (1991)] and L. Hardy
[Phys. Rev. Lett.,vol. 73, 2279 (1994)]. A double heterodyne measurement is
used to measure correlations in the Fock space spanned by zero and one photons.
Local oscillators used in the correlation measurement are distributed to two
observers by co-propagating it in an orthogonal polarization mode. This method
eliminates the need for interferometrical stability in the setup, consequently
making it a robust and scalable method.Comment: 4 pages, 3 figures, revtex4 forma
УЯВЛЕННЯ СЕМІОЛОГІЇ ЯК КУЛЬТУРНО-ІСТОРИЧНОЇ АНТРОПОЛОГІЇ. (Presentation of semiology as cultural and historical anthropology.)
Культурно-історична антропологія виступає як своєрідне відображення розвитку людини впродовж тисячоліть. Автор здійснює бачення семіології як своєрідної рефлексії відображення культури людини та її світогляду. Культура стає горизонтом антропології. Досліджуються погляди на трансформацію і моделювання культури, де мовні дискурси існують як феномен розуміння людського існування.
(Cultural and historical anthropology comes forward as original reflection of development of man during millenniums. The author realizes the seeing of semiology as original reflection of culture of man and its world view. A culture becomes the horizon of anthropology. The looks are explored on transformation and design of culture, where linguistic discourses exist as the phenomenon of understanding of human existence.
1-Phenyl-2-trifluoromethyl-4-quinolone
In the title molecule, C16H10F3NO, the N-bound phenyl ring is oriented nearly orthogonal to the quinolinyl ring in order to avoid steric clashes with the trifluoromethyl substituent [dihedral angle 89.7 (1)°]
Quadratic-in-magnetization permittivity and conductivity tensor in cubic crystals
We present diagonal and off-diagonal elements of the permittivity and
conductivity tensor up to the second order in magnetization for cubic crystals.
We express all tensor elements as a function of a general sample orientation,
for arbitrary magnetization direction and for (001), (011) and (111) surface
orientations. Finally, we discuss, how to extract values of quadratic elements
G of the second order permittivity tensors for different sample surface
orientations from both experiment and ab-initio calculations
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