Laval nozzle as an acoustic analogue of a massive field

Cuyubamba, M. A.

doi:10.1088/0264-9381/30/19/195005

Cited by 12 publications

(13 citation statements)

References 49 publications

(75 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(20) and (21), satisfy the first order Eqs. (18) and (19) in the limit r → ∞. Comparing this result with the one in the Minkowski space, we obtain the following approximate expressions for the phase shift for the upper and lower components of the spinor fields:…”

Section: Fermion Field In the Acoustic Black Hole Backgroundmentioning

confidence: 83%

“…Since then, the study of analog models of gravity [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] has become an important field where one investigates the Hawking radiation as well as to improve the theoretical understanding of quantum gravity. For such analog models there are many examples, so we highlight gravity waves [20], water [21], slow light [22][23][24], optical fibers [25] and electromagnetic waveguides [26].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Aharonov–Bohm effect for a fermion field in a planar black hole “spacetime”

et al. 2017

View full text Add to dashboard Cite

In this paper we consider the dynamics of a massive spinor field in the background of the acoustic black hole spacetime. Although this effective metric is acoustic and describes the propagation of sound waves, it can be considered as a toy model for the gravitational black hole. In this manner, we study the properties of the dynamics of the fermion field in this "gravitational" rotating black hole as well as the vortex background. We compute the differential cross section through the use of the partial wave approach and show that an effect similar to the gravitational AharonovBohm effect occurs for the massive fermion field moving in this effective metric. We discuss the limiting cases and compare the results with the massless scalar field case.

show abstract

Section: Fermion Field In the Acoustic Black Hole Backgroundmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Aharonov–Bohm effect for a fermion field in a planar black hole “spacetime”

et al. 2017

View full text Add to dashboard Cite

show abstract

“…On the other hand, acoustic perturbations of a gas flow, in the so-called de Laval nozzle, have been shown to correspond to the general form of perturbations of Schwarzschild black holes [19][20][21]. It introduces the feasibility to produce and observe their quasinormal resonances in the laboratory.…”

Section: Introductionmentioning

confidence: 99%

“…Fluid flows have been studied, in this context, in a de Laval nozzle, aiming to observe acoustic black holes in the Schwarzschild setup [19][20][21]. The acoustic black hole surface gravity was experimentally derived in the laboratory, in Ref.…”

Section: Introductionmentioning

confidence: 99%

Black hole acoustics in the minimal geometric deformation of a de Laval nozzle

Rocha

2017

Eur. Phys. J. C

View full text Add to dashboard Cite

The correspondence between sound waves, in a de Laval propelling nozzle, and quasinormal modes emitted by brane-world black holes deformed by a 5D bulk Weyl fluid are here explored and scrutinized. The analysis of sound waves patterns in a de Laval nozzle in the laboratory, reciprocally, is here shown to provide relevant data about the 5D bulk Weyl fluid and its on-brane projection, comprised by the minimal geometrically deformed compact stellar distribution on the brane. Acoustic perturbations of the gas fluid flow in the de Laval nozzle are proved to coincide with the quasinormal modes of black holes solutions deformed by the 5D Weyl fluid, in the geometric deformation procedure. Hence, in a phenomenological Eötvös-Friedmann fluid brane-world model, the realistic shape of a de Laval nozzle is derived and its consequences studied.

show abstract

“…Considering the flow in a Laval nozzle, Cuyubamba has shown the emergence of a massive scalar field in the context of analogue gravity arguing for the possibility of observation of quasi-normal ringing of the massive scalar field within the laboratory setup [18].…”

Section: Introductionmentioning

confidence: 99%

Effects of quantum potential on lower dimensional models of analogue gravity

Sarkar

Bhattacharyay

2016

Phys. Rev. D

View full text Add to dashboard Cite

We address the issues related to the presence of the quantum potential term in a BEC on the observable Analogue Gravity systems. We show that the quantum potential term apparently gives rise to massive scalar excitations of length scales of the order O(1/ξ) in the lower dimensional space. Since, in 'analogue models' , there is a window for experimental observations generally in (2 + 1) or even lower dimensional space, one has to take proper account of the presence of these massive excitations to interpret the results.

show abstract

Laval nozzle as an acoustic analogue of a massive field

Cited by 12 publications

References 49 publications

Aharonov–Bohm effect for a fermion field in a planar black hole “spacetime”

Aharonov–Bohm effect for a fermion field in a planar black hole “spacetime”

Black hole acoustics in the minimal geometric deformation of a de Laval nozzle

Effects of quantum potential on lower dimensional models of analogue gravity

Contact Info

Product

Resources

About