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Adaptive Perturbation Theory: Quantum Mechanics and Field Theory [PDF]

open access: greenNuclear Physics B - Proceedings Supplements, 2005
Adaptive perturbation is a new method for perturbatively computing the eigenvalues and eigenstates of quantum mechanical Hamiltonians that are widely believed not to be solvable by such methods.
Halliday   +5 more
core   +9 more sources

Adaptive Perturbation Theory I: Quantum Mechanics [PDF]

open access: green, 2005
Adaptive perturbation is a new method for perturbatively computing the eigenvalues and eigenstates of quantum mechanical Hamiltonians that heretofore were not believed to be obtainable by such methods. The novel feature of adaptive perturbation theory is
/SLAC, Weinstein, Marvin
core   +9 more sources

Perturbation Theory for Singular Potentials in Quantum Mechanics [PDF]

open access: greenInternational Journal of Modern Physics A, 1998
We study perturbation theory in certain quantum mechanics problems in which the perturbing potential diverges at some points, even though the energy eigenvalues are smooth functions of the coefficient of the potential.
Bergman O.   +4 more
core   +9 more sources

Alternative analysis to perturbation theory [PDF]

open access: greenThe European Physical Journal D, 2011
We develop an alternative approach to time independent perturbation theory in non-relativistic quantum mechanics. The method developed has the advantage to provide in one operation the correction to the energy and to the wave function, additionally we ...
B. Simon   +11 more
core   +4 more sources

Further N-Frame networking dynamics of conscious observer-self agents via a functional contextual interface: predictive coding, double-slit quantum mechanical experiment, and decision-making fallacy modeling as applied to the measurement problem in humans and AI [PDF]

open access: yesFrontiers in Computational Neuroscience
Artificial intelligence (AI) has made some remarkable advances in recent years, particularly within the area of large language models (LLMs) that produce human-like conversational abilities via utilizing transformer-based architecture. These advancements
Darren J. Edwards
doaj   +2 more sources

The perturbation theory of matrix mechanics based on its canonical transformations

open access: yesResults in Physics, 2022
We elucidate that the canonical transformations of matrix mechanics are just the transformations of different representations of the standard quantum mechanics, reproduce the non-degenerate, degenerate and time-dependent perturbation theory in three men ...
Yong-Yi Huang
doaj   +1 more source

Generalized uncertainty principle and burning stars

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Gamow’s theory of the implications of quantum tunneling for star burning has two cornerstones: quantum mechanics and the equipartition theorem. It has been proposed that both of these foundations are affected by the existence of a non-zero minimum length,
H. Moradpour   +3 more
doaj   +1 more source

Complex eigenvalues in Kuryshkin-Wodkiewicz quantum mechanics

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2022
One of the possible versions of quantum mechanics, known as Kuryshkin-Wodkiewicz quantum mechanics, is considered. In this version, the quantum distribution function is positive, but, as a retribution for this, the von Neumann quantization rule is ...
Alexander V. Zorin   +2 more
doaj   +1 more source

Spectral Problems for Quasinormal Modes of Black Holes

open access: yesUniverse, 2021
This is an unconventional review article on spectral problems in black hole perturbation theory. Our purpose is to explain how to apply various known techniques in quantum mechanics to such spectral problems.
Yasuyuki Hatsuda, Masashi Kimura
doaj   +1 more source

Perturbative ground states of the 1+1d double-well

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
At second order in perturbation theory, we find the ground states of the $$\phi ^4$$ ϕ4 double-well quantum field theory in 1+1 dimensions. The operators which create these ground states from the free vacuum are constructed explicitly at this order, as ...
Hui Liu, Yao Zhou, Jarah Evslin
doaj   +1 more source

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