Results 51 to 60 of about 1,175,217 (343)

Quantum Macrostates, Equivalence of Ensembles and an H-Theorem

, 2006
Before the thermodynamic limit, macroscopic averages need not commute for a quantum system. As a consequence, aspects of macroscopic fluctuations or of constrained equilibrium require a careful analysis, when dealing with several observables.
Christian Maes, Kac M., Karel Netočný, Pauli W., Tolman R. C., von Neumann J., Wojciech De Roeck   +6 more
core   +1 more source

Classical Dynamics of Macroscopic Strings [PDF]

, 1992
In recent work, Dabholkar {\it et al.} constructed static ``cosmic string" solutions of the low-energy supergravity equations of the heterotic string, and conjectured that these solitons are actually exterior solutions for infinitely long fundamental ...
Atiyah, Atiyah, Brill, Callan, Callan, Callan, Callan, Callan, Dabholkar, Dabholkar, Duff, Duff, Gibbons, Gibbons, Green, Gross, Khuri, Khuri, Khuri, Manton, Polchinski, Ramzi R. Khuri, Strominger   +22 more
core   +3 more sources

Ultra-coherent nanomechanical resonators based on inverse design

Nature Communications, 2021
Nanomechanical resonators can be improved through rational design. Using an inverse design approach the authors achieve ultra-coherent resonators and pave the way towards the engineering of high performance micro- and nanomechanical resonators.
Dennis Høj, Fengwen Wang, Wenjun Gao, Ulrich Busk Hoff, Ole Sigmund, Ulrik Lund Andersen   +5 more
doaj   +1 more source

Superposition of macroscopic numbers of atoms and molecules

, 2001
We theoretically examine photoassociation of a non-ideal Bose-Einstein condensate, focusing on evidence for a macroscopic superposition of atoms and molecules.
A. J. Leggett, A. J. Leggett, A. Sørensen, B. Yurke, C. Monroe, D. A. R. Dalvit, D. F. Walls, D. Gordon, D. J. Heinzen, E. Schrödinger, E. Schrödinger, E. Schrödinger, E. Timmermans, F. A. van Abeelen, F. Laloë, J. I. Cirac, J. Javanainen, J. Javanainen, J. R. Freidman, J. R. Friedman, J. Ruostekoski, John Calsamiglia, K. Burnett, K. Góral, Kalle-Antti Suominen, M. Arndt, M. Brune, M. Holland, M. Kos̆trun, M. Mackie, M. Mackie, M. Mackie, M. O. Scully, Matt Mackie, P. D. Drummond, P. O. Fedichev, P. S. Julienne, R. Wynar, S. J. J. M. F. Kokkelmans, S. P. Nikitin, S. T. Gevorkyan, U. V. Poulsen, W. Wernsdorfer   +42 more
core   +1 more source

FOLIAR MICRO-MORPHOLOGY AND PHYTOCHEMICAL STATUS OF LEEA GUINEENSIS G. DON LEAVES [PDF]

Journal of Plant Development, 2019
Leea guineensis G. Don leaves are known to contain some active compounds that certify its usage as a medicinal plant. The establishment of a comprehensive pharmacognostic profile of L.
Olamilekan Lanre AWOTEDU, Paul Oluwatimilehin OGUNBAMOWO   +1 more
doaj   +1 more source

The Averaging Problem in Cosmology and Macroscopic Gravity

, 2008
The averaging problem in cosmology and the approach of macroscopic gravity to resolve the problem is discussed. The averaged Einstein equations of macroscopic gravity are modified on cosmological scales by the macroscopic gravitational correlation tensor
de Groot S. T., Lorentz H. A., Montani G., ROUSTAM ZALALETDINOV, Zalaletdinov R. M., Zalaletdinov R. M.   +5 more
core   +1 more source

Macroscopic quantum states: Measures, fragility, and implementations [PDF]

Reviews of Modern Physics, 2017
Large-scale quantum effects have always played an important role in the foundations of quantum theory. With recent experimental progress and the aspiration for quantum enhanced applications, the interest in macroscopic quantum effects has been reinforced.
F. Frowis, P. Sekatski, W. Dur, N. Gisin, N. Sangouard   +4 more
semanticscholar   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Reduced cortical bone thickness increases stress and strain in the female femoral diaphysis analyzed by a CT-based finite element method: Implications for the anatomical background of fatigue fracture of the femur

Bone Reports, 2020
The incidence of hip fractures is increasing in Japan and is high among women older than 70 years. While osteoporosis has been identified as one of the causative factors of fracture, atypical femoral fracture has emerged as a potential complication of ...
Daisuke Endo, Keiko Ogami-Takamura, Takeshi Imamura, Kazunobu Saiki, Kiyohito Murai, Keishi Okamoto, Toshiyuki Tsurumoto   +6 more
doaj   +1 more source

Macroscopic Virtual Particles Exist

, 2018
Virtual particles expected to occur in microscopic processes as they are introduced, for instance by Feynman in the Quantum Electro Dynamics, as photons performing in an anonymous way in the interaction between two electrons.
Nimtz, Guenter
core   +1 more source