Results 181 to 190 of about 908 (229)

Thermally Modulated Specular Phonon Transport in a High‐Debye‐Temperature Diamond Nanobeam

open access: yesAdvanced Science, EarlyView.
Thermal transport in single‐crystal diamond nanobeams is measured from 140 to 300 K using electro‐thermal micro‐suspended structures. The thermal conductivity shows an increasing deviation from Boltzmann transport predictions assuming fully diffuse boundary scattering at lower temperatures.
Seohee Jang   +5 more
wiley   +1 more source

Intensity correlations in the Wigner representation. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Shikhali Najafabadi M   +5 more
europepmc   +1 more source

Directed Evolution's Selective Use of Quantum Tunneling in Designed Enzymes─A Combined Theoretical and Experimental Study. [PDF]

open access: yesJ Phys Chem B
Korchagina K   +7 more
europepmc   +1 more source

Path Integrals in Relativistic Quantum Mechanics

1994
This paper is a review of path integral representations for semigroups {exp(-t H_r/ħ)}{t≥0} where H_r's are relativistic quantum Hamiltonians. We consider three different cases: in the first one Hr is a relativistic Schrödinger operator, in the second is the Hamiltonian associated to Klein-Gordon equation and in the third is that coming from the Dirac
De Angelis G. F, SERVA, Maurizio
openaire   +2 more sources

Path Integrals in Quantum Mechanics

2011
Path integrals provide in many instances an elegant complementary description of quantum mechanics and also for the quantization of fields, which we will study from a canonical point of view in Chapter ?? and following chapters. Path integrals are particularly popular in scattering theory, because the techniques of path integration were originally ...
openaire   +2 more sources

Path integration in non-relativistic quantum mechanics

Physics Reports, 1979
Abstract A new method for computing path integrals explicitly is developed and applied to problems in non-relativistic quantum mechanics, such as: wave functions, propagators on configuration spaces and on phase space, caustic problems, bound states. Path integrals for paths on curved spaces and for paths on multiply-connected spaces are computed.
Cécile DeWitt-Morette   +2 more
openaire   +1 more source

Path integrals in N=2 supersymmetric quantum mechanics

Journal of Mathematical Physics, 1993
By use of path integrals in N=2 supersymmetric quantum mechanics, a formula for the kernel of the supersymmetric time evolution operator is found. Structurally it is similar to the Feynman–Kac formula used in the path integrals of quantum mechanics. Crucial to the development of this formula is a generalization of the Wiener measure based upon the free
openaire   +1 more source

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