Results 61 to 70 of about 94,740,043 (297)

Quantum information theory and the foundations of quantum mechanics [PDF]

, 2004
This thesis is a contribution to the debate on the implications of quantum information theory for the foundational problems of quantum mechanics. In Part I an attempt is made to shed some light on the nature of information and quantum information theory.
Timpson, Christopher, Timpson, Christopher Gordon, Brown, Harvey R, Brown, Harvey R.   +3 more
core   +1 more source

On Self-Adjoint Extensions and Symmetries in Quantum Mechanics [PDF]

Annales Henri Poincaré, 2014
General stylistic improvements and typos corrected. References added. 27 pages, 1 figure.
Ibort, Alberto, Lledó, Fernando, Pérez-Pardo, Juan Manuel   +2 more
openaire   +3 more sources

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

On Symplectic Reduction in Classical Mechanics [PDF]

, 2005
This paper expounds the modern theory of symplectic reduction in finite-dimensional Hamiltonian mechanics. This theory generalizes the well-known connection between continuous symmetries and conserved quantities, i.e. Noether's theorem.
Butterfield, Jeremy
core  

SymTh for non-finite symmetries

Journal of High Energy Physics
Symmetry topological field theory (SymTFT) is a convenient tool for studying finite generalized symmetries of a given quantum field theory (QFT). In particular, SymTFTs encode all the symmetry structures and properties, including anomalies.
Fabio Apruzzi, Francesco Bedogna, Nicola Dondi   +2 more
doaj   +1 more source

Nonlinear symmetries of perfectly invisible PT-regularized conformal and superconformal mechanics systems

Journal of High Energy Physics, 2019
We investigate how the Lax-Novikov integral in the perfectly invisible PT-regularized zero-gap quantum conformal and superconformal mechanics systems affects on their (super)-conformal symmetries. We show that the expansion of the conformal symmetry with
Juan Mateos Guilarte, Mikhail S. Plyushchay   +1 more
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

On Global and Nonlinear Symmetries in Quantum Mechanics

Acta Polytechnica, 2010
(3) and furthermore nonlinear Schroedinger equations with given potentials which were also derived in another context in [1, 2].
H.-D. Doebner
doaj  

PHYSICS: WHAT DOES ONE NEED TO KNOW?

Zygon, 1996
. For the basic areas of physics‐classical mechanics, classical field theories, and quantum mechanics‐there are local dynamical theories that offer complete descriptions of systems when the proper subsidiary conditions also are provided.
doaj   +2 more sources

Implications of conformal symmetry in quantum mechanics [PDF]

Physical Review D, 2017
25 pages, 2 figures; v3: published version in Physical Review ...
openaire   +2 more sources