Recent Advances in Quantum Dynamics and Nuclear Physics III. The Quantum Theory of General Force Fields

1938 ◽  
Vol 9 (2) ◽  
pp. 40-46
Author(s):  
Edward L. Hill
Keyword(s):  
Quantum Theory ◽  
Nuclear Physics ◽  
Quantum Dynamics ◽  
Force Fields ◽  
Recent Advances ◽  
General Force

Recent advances in nuclear physics

1953 ◽  
Vol 4 (10) ◽  
pp. 289-297 ◽  
Author(s):  
Sir John Cockcroft
Keyword(s):  
Nuclear Physics ◽  
Recent Advances

scholarly journals Посвящается памяти выдающегося физика и математика --- Фаддеева Людвига Дмитриевича Применение квантовой теории рассеяния для расчетов простейших химических реакций --- диссоциативного прилипания, диссоциации и рекомбинации

2019 ◽  
Vol 89 (6) ◽  
pp. 803
Author(s):  
С.А. Позднеев
Keyword(s):  
Quantum Theory ◽  
Nuclear Physics ◽  
Scattering States

The quantum theory of few-body scattering based on the Faddeev-Yakubovsky equations is applied to the calculation of the main characteristics of different processes in laser, atomic, chemical and nuclear physics such as: the electron and atoms scattering with the diatomic initial rovibrational exiting molecules % $H_2$, $HD$, $D_2$, $N_2$, $Li_2$, $Na_2$, $HCl$, $HBr$ , simulation of bound and scattering states for nuclear physics %neutron-deuton, proton-deuton, positronium ion and so on. The results of this calculations are compared with available exsperimental data and other calculation.

Recent progress in general force fields of small molecules

2022 ◽  
Vol 72 ◽  
pp. 187-193
Author(s):  
Xibing He ◽  
Brandon Walker ◽  
Viet H. Man ◽  
Pengyu Ren ◽  
Junmei Wang
Keyword(s):  
Small Molecules ◽  
Recent Progress ◽  
Force Fields ◽  
General Force

scholarly journals Space-time from Collapse of the Wave-function

2019 ◽  
Vol 74 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Tejinder P. Singh
Keyword(s):  
Hilbert Space ◽  
Wave Function ◽  
Quantum Theory ◽  
Minkowski Space ◽  
Time Scales ◽  
Quantum Interference ◽  
Quantum Dynamics ◽  
Space Time ◽  
Minkowski Space Time ◽  
Macroscopic Objects

AbstractWe propose that space-time results from collapse of the wave function of macroscopic objects, in quantum dynamics. We first argue that there ought to exist a formulation of quantum theory which does not refer to classical time. We then propose such a formulation by invoking an operator Minkowski space-time on the Hilbert space. We suggest relativistic spontaneous localisation as the mechanism for recovering classical space-time from the underlying theory. Quantum interference in time could be one possible signature for operator time, and in fact may have been already observed in the laboratory, on attosecond time scales. A possible prediction of our work seems to be that interference in time will not be seen for ‘time slit’ separations significantly larger than 100 attosecond, if the ideas of operator time and relativistic spontaneous localisation are correct.

scholarly journals Polarizable Force Fields for Biomolecular Simulations: Recent Advances and Applications

2019 ◽  
Vol 48 (1) ◽  
pp. 371-394 ◽  
Author(s):  
Zhifeng Jing ◽  
Chengwen Liu ◽  
Sara Y. Cheng ◽  
Rui Qi ◽  
Brandon D. Walker ◽  
...  
Keyword(s):  
Force Fields ◽  
Intermolecular Forces ◽  
Physical Models ◽  
Biomolecular Systems ◽  
Future Directions ◽  
Biologically Relevant ◽  
Polarizable Force Fields ◽  
Recent Advances ◽  
Accurate Treatment ◽  
Biomolecular Simulations

Realistic modeling of biomolecular systems requires an accurate treatment of electrostatics, including electronic polarization. Due to recent advances in physical models, simulation algorithms, and computing hardware, biomolecular simulations with advanced force fields at biologically relevant timescales are becoming increasingly promising. These advancements have not only led to new biophysical insights but also afforded opportunities to advance our understanding of fundamental intermolecular forces. This article describes the recent advances and applications, as well as future directions, of polarizable force fields in biomolecular simulations.

scholarly journals Schrödinger-like quantum dynamics in loop quantized black holes

2016 ◽  
Vol 25 (08) ◽  
pp. 1642006 ◽  
Author(s):  
Rodolfo Gambini ◽  
Javier Olmedo ◽  
Jorge Pullin
Keyword(s):  
Black Holes ◽  
Quantum Theory ◽  
Quantum Dynamics ◽  
Local Information ◽  
Quantum States ◽  
Spherically Symmetric ◽  
Definition Of ◽  
Symmetric Spacetime ◽  
Spherically Symmetric Spacetime

We show, following a previous quantization of a vacuum spherically symmetric spacetime carried out in [R. Gambini, J. Olmedo and J. Pullin, Class. Quantum Grav. 31 (2014) 095009.] that this setting admits a Schrödinger-like picture. More precisely, the technique adopted there for the definition of parametrized Dirac observables (that codify local information of the quantum theory) can be extended in order to accommodate different pictures. In this new picture, the quantum states are parametrized in terms of suitable gauge parameters and the observables constructed out of the kinematical ones on this space of parametrized states.

Non-self-adjoint operators as observables in quantum theory and nuclear physics

2010 ◽  
Vol 41 (4) ◽  
pp. 508-530 ◽  
Author(s):  
V. S. Olkhovsky ◽  
S. P. Maydanyuk ◽  
E. Recami
Keyword(s):  
Quantum Theory ◽  
Nuclear Physics ◽  
Adjoint Operators

scholarly journals Recent Advances for Improving the Accuracy, Transferability, and Efficiency of Reactive Force Fields

2021 ◽  
Author(s):  
Itai Leven ◽  
Hongxia Hao ◽  
Songchen Tan ◽  
Xingyi Guan ◽  
Katheryn A. Penrod ◽  
...  
Keyword(s):  
Force Fields ◽  
Reactive Force ◽  
Recent Advances ◽  
Reactive Force Fields
Sign in / Sign up

Export Citation Format

Share Document