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Exact solutions for nondiffracting beams. I. The scalar theory

- J. Durnin
- Physics
- 1 April 1987

We present exact, nonsingular solutions of the scalar-wave equation for beams that are nondiffracting. This means that the intensity pattern in a transverse plane is unaltered by propagating in free… Expand

Exact solutions for nondiffracting beams

- J. Durnin
- 1986

We present exact, nonsingular solutions of the scalar-wave equation for beams that are nondiffracting. This means that the intensity pattern in a transverse plane is unaltered by propagating in free… Expand

Comparison of Bessel and Gaussian beams.

A comparison of beam divergence and power-transport efficiency is made between Gaussian and Bessel beams when both beams have the same initial total power and the same initial full width at… Expand

First-Passage-Time Distributions under the Influence of Quantum Fluctuations in a Laser

The distribution of first-passage times is calculated for a homogeneously broadened two-mode laser, that is characterized by a bistable potential. As a consequence of quantum fluctuations, such a… Expand

Free energy fluxes and the Kubo–Martin–Schwinger relation

A general, multi-component Eulerian fluid theory is a set of nonlinear, hyperbolic partial differential equations. However, if the fluid is to be the large-scale description of a short-range… Expand

Limits to resolution in time-dependent spectral analysis of pulses

We present a study of the ability of three basic spectrometers—the diffraction grating, the Fabry–Perot, and the prism—to measure the Fourier energy spectra of pulses, that is, signals that are time… Expand

Experiments with nondiffracting needle beams

We present a method for generating the nondiffracting beams predicted by Durnin 1 as well as the results of recent experiments with these beams.

Non-Equilibrium Dynamics and Weakly Broken Integrability

- J. Durnin, M. J. Bhaseen, B. Doyon
- Physics, Mathematics
- 23 April 2020

Motivated by dynamical experiments on cold atomic gases, we develop a quantum kinetic approach to weakly perturbed integrable models out of equilibrium. Using the exact matrix elements of the… Expand

Does a photodetector always measure the rate of arrival of photons

It is pointed out that in many cases the response of a photodetector depends on the angle of the incident light beam in a way that is different from the transmissivity of the photosensitive surface.… Expand

The Space of Integrable Systems from Generalised $T\bar{T}$-Deformations

- B. Doyon, J. Durnin, T. Yoshimura
- Physics
- 7 May 2021

We introduce an extension of the generalised T T̄ -deformation described by SmirnovZamolodchikov, to include the complete set of extensive charges. We show that this gives deformations of S-matrices… Expand

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