Results 21 to 30 of about 24,537 (218)

The Phase Diagram of Scalar Field Theory on the Fuzzy Disc [PDF]

, 2015
Using a recently developed bootstrapping method, we compute the phase diagram of scalar field theory on the fuzzy disc with quartic even potential. We find three distinct phases with second and third order phase transitions between them.
Rea, Simone, Saemann, Christian
core   +3 more sources

Covariant fuzzy observables and coarse-graining

, 2003
A fuzzy observable is regarded as a smearing of a sharp observable, and the structure of covariant fuzzy observables is studied. It is shown that the covariant coarse-grainings of sharp observables are exactly the covariant fuzzy observables. A necessary
Ali, Ali, Ali, Busch, Busch, Busch, Cassinelli, Cassinelli, Davies, Dunford, Dvurečenskij, Folland, Folland, Heinonen, Herglotz, Hewitt, Kari Ylinen, Mackey, Montgomery, Pekka Lahti, Prugovečki, Teiko Heinonen, Wendel, Zadeh, Zadeh   +24 more
core   +1 more source

Commutative POVMs and Fuzzy Observables

, 2009
In this paper we review some properties of fuzzy observables, mainly as realized by commutative positive operator valued measures. In this context we discuss two representation theorems for commutative positive operator valued measures in terms of ...
Ali, S. Twareque, Carmeli, Claudio, Heinosaari, Teiko, Toigo, Alessandro   +3 more
core   +1 more source

Distances between States and between Predicates

, 2020
This paper gives a systematic account of various metrics on probability distributions (states) and on predicates. These metrics are described in a uniform manner using the validity relation between states and predicates.
Jacobs, Bart, Westerbaan, Abraham
core   +1 more source

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

Advanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta, Simone Bertucci, Jose Mendoza‐Carreño, Agustín Mihi, Paola Lova, Davide Comoretto, Ullrich Steiner, Marco Lattuada, Andrea Dodero   +8 more
wiley   +1 more source

Fuzzy Riesz subspaces, fuzzy ideals, fuzzy bands and fuzzy band projections

, 2015
Fuzzy ordered linear spaces, Riesz spaces, fuzzy Archimedean spaces and $\sigma$-complete fuzzy Riesz spaces were defined and studied in several works. Following the efforts along this line, we define fuzzy Riesz subspaces, fuzzy ideals, fuzzy bands and ...
Hong, Liang
core   +2 more sources

Beyond the Edge: Charge‐Transfer Excitons in Organic Donor‐Acceptor Cocrystals

Advanced Functional Materials, EarlyView.
Complex excitonic landscapes in acene–perfluoroacene cocrystals are unveiled by polarization‐resolved optical spectroscopy and many‐body theory. This systematic study of a prototypical model system for weakly interacting donor–acceptor compounds challenges common views of charge‐transfer excitons, providing a refined conceptual framework for ...
Sebastian Anhäuser, Ana M. Valencia, Sergei I. Ivlev, Marc Zeplichal, Andreas Terfort, Caterina Cocchi, Gregor Witte   +6 more
wiley   +1 more source

Metric Properties of the Fuzzy Sphere

, 2012
The fuzzy sphere, as a quantum metric space, carries a sequence of metrics which we describe in detail. We show that the Bloch coherent states, with these spectral distances, form a sequence of metric spaces that converge to the round sphere in the high ...
A. Connes, A. Connes, A. Connes, A.A. Andrianov, A.A. Andrianov, A.B. Klimov, A.M. Perelomov, A.P. Balachandran, A.P. Balachandran, B. Iochum, B. Kostant, C. Brif, C.S. Chu, E. Cagnache, E. Harikumar, F.T. Arecchi, Fedele Lizzi, Francesco D’Andrea, G.S. Agarwal, H. Grosse, J-S. Huang, J. Madore, J.-C. Wallet, J.-P. Amiet, J.C. Várilly, J.M. Gracia-Bondía, Joseph C. Várilly, L.C. Biedenharn, M.A. Rieffel, M.A. Rieffel, M.A. Rieffel, R.L. Stratonovich, T. Friedrichm, U. Carow-Watamura, U. Carow-Watamura   +34 more
core   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source