Results 81 to 90 of about 90,764 (345)

Reconstructing configurational Hamiltonians from Fock space

Nuclear Physics B
We present a unified operator-based framework for reconstructing configuration-space Hamiltonians directly from their Fock-space formulations. This approach clarifies how local dynamics and geometric structure emerge from global quantum operator algebras.
Davood Momeni
doaj   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

Advanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari, Gokul Bhaskaran, Krishan Kumar, Yun Suk Huh, Young‐Kyu Han   +4 more
wiley   +1 more source

Constraints on the Fractional Changes of the Fundamental Constants at a Look-back Time of 2.5 Myr

The Astrophysical Journal Letters
The quantum nature of gravity remains one of the greatest mysteries of modern physics, with many unified theories predicting variations in fundamental constants across space and time.
Renzhi Su, Tao An, Stephen J. Curran, Michael P. Busch, Minfeng Gu, Di Li   +5 more
doaj   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

Advanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source

Quantum confinement theory of ultra-thin films: electronic, thermal and superconducting properties

JPhys Materials
The miniaturization of electronic devices has led to the prominence, in technological applications, of ultra-thin films with a thickness ranging from a few tens of nanometers to just about 1–2 nm.
Alessio Zaccone
doaj   +1 more source

On the Explanation of Born-Rule Statistics in the de Broglie-Bohm Pilot-Wave Theory

Entropy, 2018
The de Broglie-Bohm pilot-wave theory promises not only a realistic description of the microscopic world (in particular, a description in which observers and observation play no fundamental role) but also the ability to derive and explain aspects of the ...
Travis Norsen
doaj   +1 more source

Soliton-fermion systems and stabilised vortex loops

, 2007
In several self-coupled quantum field theories when treated in semi-classical limit one obtains solitonic solutions determined by topology of the boundary conditions. Such solutions, e.g.
Gadde, Abhijit, Sahu, Narendra, Yajnik, Urjit A.   +2 more
core  

Loops, knots, gauge theories and quantum gravity [PDF]

, 1996
Now in paperback, this text provides a self-contained introduction to applications of loop representations and knot theory in particle physics and quantum gravity.
Gambini, Rodolfo, Pullin, Jorge
core   +1 more source

Gauge (non-)invariant Green functions of Dirac fermions coupled to gauge fields

, 2002
We develop a unified approach to both infrared and ultraviolet asymptotics of the fermion Green functions in the condensed matter systems that allow for an effective description in the framework of the Quantum Electrodynamics. By applying a path integral
A. I. Karanikas, A. I. Karanikas, A. N. Sisakyan, A. V. Shytov, B. L. Altshuler, C. Nayak, C. Nayak, D. H. Kim, D. L. Feng, D. Nash, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, D. V. Khveshchenko, E. Bagan, G. Baym, H. Ding, I. F. Herbut, J. Gan, J. Gonzalez, J. Gonzalez, J. Gonzalez, J. Ye, L. B. Ioffe, M. Franz, M. Lavelle, M. Lavelle, M. Vojta, M. Vojta, M. Yu. Reizer, N. B. Skachkov, N. G. Stefanis, N. S. Craigie, S. Chakravarty, T. Appelquist, T. Appelquist, T. Appelquist, T. Holstein, T. Valla, W. Rantner, Y. B. Kim, Y. Dagan, Y.-B. Kim   +44 more
core   +1 more source

Pore Size Effects of Mesoporous N‐Doped Carbon Nanospheres as Advanced Support Material on the Activity of Molybdenum Sulfide Catalysts for the Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
By tuning the pore size of mesoporous N‐doped carbon (MPNC) nanospheres as support material for molybdenum sulfide, the electrochemical activity of the composite material for the hydrogen evolution reaction can be optimized. An ideal MPNC pore size of 60 nm allows a high number of molybdenum sulfide active sites while maintaining efficient proton and ...
Niklas Ortlieb, Christian Völker, Lars Guggolz, Anna Fischer   +3 more
wiley   +1 more source