Results 11 to 20 of about 2,127,671 (356)

Developing an Action Concept Inventory [PDF]

open access: yesPhysical Review Physics Education Research, 2016
We report on progress towards the development of an Action Concept Inventory (ACI), a test that measures student understanding of action principles in introductory mechanics and optics.
McGinness, Lachlan P., Savage, C. M.
core   +4 more sources

Effective average action in statistical physics and quantum field theory [PDF]

open access: green, 2001
An exact renormalization group equation describes the dependence of the free energy on an infrared cutoff for the quantum or thermal fluctuations. It interpolates between the microphysical laws and the complex macroscopic phenomena.
Bergerhoff B.   +18 more
core   +6 more sources

A variant approach to the overlap action [PDF]

open access: yesPhys.Rev.D63:034503,2000, 2000
I describe an implementation of the overlap action, which is built from an action which is itself an approximate overlap action. It appears to be about a factor of 15-20 less expensive to use, than the usual overlap action with the Wilson fermion action ...
A. Borici   +37 more
core   +3 more sources

A tmQCD mixed-action approach to flavour physics

open access: yesEPJ Web of Conferences, 2017
We discuss a mixed-action approach in which sea quarks are regularised using non-perturbatively ${\rm O}(a)$ improved Wilson fermions, while a fully-twisted tmQCD action is used for valence quarks.
Herdoíza, Gregorio   +4 more
core   +2 more sources

Tensorial origin of the action function, nexus between Quantum physics and General Relativity [PDF]

open access: greenarXiv, 2002
The analytic physics, when it is development from aprioristic form, constructs all the laws from the Hamilton principle, also called action principle. According to this principle all systems are characterized by a magnitude called action which variation is equal to zero for the real evolution of the systems.
Enrique Ordaz Romay
openalex   +3 more sources

Gender gaps and gendered action in a first-year physics laboratory [PDF]

open access: goldPhysical Review Physics Education Research, 2016
[This paper is part of the Focused Collection on Gender in Physics.] It is established that male students outperform female students on almost all commonly used physics concept inventories.
James Day   +4 more
doaj   +2 more sources

Equivariance, Variational Principles, and the Feynman Integral [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2008
We argue that the variational calculus leading to Euler's equations and Noether's theorem can be replaced by equivariance and invariance conditions avoiding the action integral.
Svetlichny, George
core   +7 more sources

The Long-Term Efficacy of “Social Buffering” in Artificial Social Agents: Contextual Affective Perception Matters

open access: yesFrontiers in Robotics and AI, 2022
In dynamic (social) environments, an affective state of “stress” can be adaptive and promote agent wellbeing, but maladaptive if not appropriately regulated.
Imran Khan   +2 more
doaj   +1 more source

Causality in Discrete Time Physics Derived from Maupertuis Reduced Action Principle

open access: yesEntropy, 2021
Causality describes the process and consequences from an action: a cause has an effect. Causality is preserved in classical physics as well as in special and general theories of relativity.
Roland Riek, Atanu Chatterjee
doaj   +1 more source

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