scholarly journals Finite-range effects in the two-dimensional repulsive Fermi polaron

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Raúl Bombín ◽  
Viktor Cikojević ◽  
Juan Sánchez-Baena ◽  
Jordi Boronat
Keyword(s):  
Two Dimensional ◽  
Finite Range ◽  
Fermi Polaron

scholarly journals Stability of the two-dimensional Fermi polaron

2018 ◽  
Vol 108 (8) ◽  
pp. 1837-1849 ◽  
Author(s):  
Marcel Griesemer ◽  
Ulrich Linden
Keyword(s):  
Two Dimensional ◽  
Fermi Polaron

scholarly journals Zero-Temperature Equation of State of a Two-Dimensional Bosonic Quantum Fluid with Finite-Range Interaction

2019 ◽  
Vol 4 (1) ◽  
pp. 20 ◽  
Author(s):  
Andrea Tononi
Keyword(s):  
Equation Of State ◽  
Effective Interaction ◽  
Equations Of Motion ◽  
Functional Integration ◽  
Dimensional Regularization ◽  
Two Dimensional ◽  
Finite Range ◽  
Zero Temperature ◽  
Range Interaction ◽  
Dimensional Equation

We derive the two-dimensional equation of state for a bosonic system of ultracold atoms interacting with a finite-range effective interaction. Within a functional integration approach, we employ a hydrodynamic parameterization of the bosonic field to calculate the superfluid equations of motion and the zero-temperature pressure. The ultraviolet divergences, naturally arising from the finite-range interaction, are regularized with an improved dimensional regularization technique.

scholarly journals Effect of a finite-range impurity potential on two-dimensional Anderson localization

1992 ◽  
Vol 46 (24) ◽  
pp. 15726-15738 ◽  
Author(s):  
M. T. Béal-Monod ◽  
A. Theumann ◽  
G. Forgacs
Keyword(s):  
Anderson Localization ◽  
Two Dimensional ◽  
Finite Range ◽  
Impurity Potential

On the lifting aerofoil in a wind tunnel with porous walls

1957 ◽  
Vol 242 (1230) ◽  
pp. 341-354 ◽  
Keyword(s):  
Pressure Drop ◽  
Wind Tunnel ◽  
Average Velocity ◽  
Solid Wall ◽  
Porous Wall ◽  
Two Dimensional ◽  
Finite Range ◽  
Special Cases ◽  
Two Dimensional Flow ◽  
Porous Walls

The wind-tunnel corrections to the lift and moment acting on an aerofoil in a subsonic two-dimensional flow, and situated midway between tunnel walls containing porous sections are calculated. The tunnel walls are taken to be porous over only a finite range R , and solid else­where, and sealed jackets over the porous sections enable the pressures on the outsides of these sections to be controlled. The porous wall is assumed to be of such a construction that the component of velocity normal to it is proportional to the pressure drop across it. Infinite porosity and zero porosity correspond to free streamline and solid-wall boundaries respectively, which are thus included in the theory as special cases. This paper is complementary to an earlier contribution (Woods 1955 c ) in which only the ‘blockage’, or average velocity increment at the model caused by the tunnel walls, was studied.

scholarly journals Emergent planarity in two-dimensional Ising models with finite-range Interactions

2019 ◽  
Vol 216 (3) ◽  
pp. 661-743 ◽  
Author(s):  
Michael Aizenman ◽  
Hugo Duminil-Copin ◽  
Vincent Tassion ◽  
Simone Warzel
Keyword(s):  
Ising Models ◽  
Two Dimensional ◽  
Finite Range

scholarly journals Stability of a vortex street of finite vortices

1982 ◽  
Vol 117 ◽  
pp. 171-185 ◽  
Author(s):  
P. G. Saffman ◽  
J. C. Schatzman
Keyword(s):  
Finite Size ◽  
Vortex Street ◽  
Two Dimensional ◽  
Finite Range ◽  
Finite Area ◽  
Von Karman ◽  
Spacing Ratio ◽  
Vortex Size ◽  
Karman Vortex ◽  
The Stability

The stability of the finite-area Kármán ‘vortex street’ to two-dimensional disturbances is determined. It is shown that for vortices of finite size there exists a finite range of spacing ratio κ for which the array is stable to infinitesimal disturbances. As the vortex size approaches zero, the range narrows to zero width about the classical von Kármán value of 0·281.

Spectrophotometric measurements of objective-prism spectra

1966 ◽  
Vol 24 ◽  
pp. 118-119
Author(s):  
Th. Schmidt-Kaler
Keyword(s):  
Progress Report ◽  
Two Dimensional ◽  
Objective Prism ◽  
Made In

I should like to give you a very condensed progress report on some spectrophotometric measurements of objective-prism spectra made in collaboration with H. Leicher at Bonn. The procedure used is almost completely automatic. The measurements are made with the help of a semi-automatic fully digitized registering microphotometer constructed by Hög-Hamburg. The reductions are carried out with the aid of a number of interconnected programmes written for the computer IBM 7090, beginning with the output of the photometer in the form of punched cards and ending with the printing-out of the final two-dimensional classifications.

Introductory paper

1966 ◽  
Vol 24 ◽  
pp. 3-5
Author(s):  
W. W. Morgan
Keyword(s):  
Line Intensity ◽  
Classification Scheme ◽  
Two Dimensional ◽  
Spectral Classification ◽  
Dimensional Array ◽  
Rr Lyrae ◽  
Metallic Line ◽  
Introductory Paper ◽  
Parameter Varying ◽  
Definition Of

1. The definition of “normal” stars in spectral classification changes with time; at the time of the publication of theYerkes Spectral Atlasthe term “normal” was applied to stars whose spectra could be fitted smoothly into a two-dimensional array. Thus, at that time, weak-lined spectra (RR Lyrae and HD 140283) would have been considered peculiar. At the present time we would tend to classify such spectra as “normal”—in a more complicated classification scheme which would have a parameter varying with metallic-line intensity within a specific spectral subdivision.

A one-dimensional self-gravitating stellar gas

1966 ◽  
Vol 25 ◽  
pp. 46-48 ◽  
Author(s):  
M. Lecar
Keyword(s):  
Gravitational Field ◽  
Phase Space ◽  
Motion Picture ◽  
Space Distribution ◽  
Two Dimensional ◽  
One Dimensional ◽  
Phase Space Distribution ◽  
Dimensional Phase Space ◽  
The Mean

“Dynamical mixing”, i.e. relaxation of a stellar phase space distribution through interaction with the mean gravitational field, is numerically investigated for a one-dimensional self-gravitating stellar gas. Qualitative results are presented in the form of a motion picture of the flow of phase points (representing homogeneous slabs of stars) in two-dimensional phase space.

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