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The mean free time and the mean free path: exact expressions for an (approximately) ideal gas
The order of magnitudes for the mean free time and the mean free path corresponding to classical (nearly) ideal gases are easy to estimate. The exact...
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Calculation of the Mean Free Path of an Electron in a Multiply Connected Conductive Domain
AbstractThe original derivation of the formula for the mean free path of an electron in a conductive multiply connected domain in three-dimensional...
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Determination of scattering mean free path in magnetic nanoparticle suspensions
Understanding the mechanisms of light scattering and diffraction in random media is of great importance for random lasers, and can play a vital role...
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Experimental study on correction of non-common path aberrations in free-space coherent optical communication
Adaptive optics (AO) technology is based on the principle of real-time measurement and compensation to correct beam wavefront distortion. In a...
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Fermions at finite density in the path integral approach
We study relativistic fermionic systems in 3 + 1 spacetime dimensions at finite chemical potential and zero temperature, from a path-integral point...
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Modification of the mean free path of very high-energy photons due to a relativistic deformed kinematics
Ultra-high-energy physics is about to enter a new era thanks to the impressive results of experiments such as the Large High Altitude Air Shower...
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Describing the differential inelastic inverse mean free path of PMMA polymer with the Mermin–Belkacem-Sigmund model
This study systematically underlines the significance of comparing theoretical differential inelastic inverse mean free paths (DIIMFPs) for various...
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Path-integral quantization of tensionless (super) string
In this work, we study the tensionless (super)string in the formalism of path-integral quantization. We introduce BMS bc and βγ ghosts intrinsically...
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Is the Euclidean path integral always equal to the thermal partition function?
The Euclidean path integral is compared to the thermal (canonical) partition function in curved static space-times. It is shown that if spatial...
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Free Fall
A central problem in physics is to understand how stuff moves. The study of thrown and falling objects has considerably advanced our knowledge of...
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Trace anomaly of weyl fermions via the path integral
We compute the trace, diffeomorphism and Lorentz anomalies of a free Weyl fermion in a gravitational background field by path integral methods. This...
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On the evaluation of the Ray-Singer torsion path integral
There are very few explicit evaluations of path integrals for topological gauge theories in more than 3 dimensions. Here we provide such a...
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Massive Ray-Singer torsion and path integrals
Zero modes are an essential part of topological field theories, but they are frequently also an obstacle to the explicit evaluation of the associated...
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Multi-bit quantum random number generator from path-entangled single photons
Measurement outcomes on quantum systems exhibit inherent randomness and are fundamentally nondeterministic. This has enabled quantum physics to set...
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Gauged permutation invariant matrix quantum mechanics: path integrals
We give a path integral construction of the quantum mechanical partition function for gauged finite groups. Our construction gives the quantization...
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Introduction to Path Integral Methods
Path integrals were introduced by Feynman as an alternative formulation to the conventional hamiltonian approach used in quantum mechanics. The...
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The Effect of Turbulence on Generation of High-Intensity Light Channels during Femtosecond Laser Pulse Propagation along a 100-Meter Air Path
Abstract —Remote control of high-intensity laser beams in the atmosphere is an important problem of atmospheric optics. It is of special interest for...
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S-matrix path integral approach to symmetries and soft theorems
We explore a formulation of the S-matrix in terms of the path integral with specified asymptotic data, as originally proposed by Arefeva, Faddeev,...
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Beyond islands: a free probabilistic approach
We give a free probabilistic proposal to compute the fine-grained radiation entropy for an arbitrary bulk radiation state, in the context of the...