Outputs (20)

Third sound detectors in accelerated motion (2024)
Journal Article
Bunney, C. R., Barroso, V. S., Biermann, S., Geelmuyden, A., Gooding, C., Ithier, G., Rojas, X., Louko, J., & Weinfurtner, S. (2024). Third sound detectors in accelerated motion. New Journal of Physics, 26(6), Article 065001. https://doi.org/10.1088/1367-2630/ad5758

An accelerated observer moving through empty space sees particles appearing and disappearing, while an observer with a constant velocity does not register any particles. This phenomenon, generally known as the Unruh effect, relies on an initial vacuu... Read More about Third sound detectors in accelerated motion.

Rotating curved spacetime signatures from a giant quantum vortex (2024)
Journal Article
Švančara, P., Smaniotto, P., Solidoro, L., MacDonald, J. F., Patrick, S., Gregory, R., Weinfurtner, S., & Barenghi, C. F. (2024). Rotating curved spacetime signatures from a giant quantum vortex. Nature, 628(8006), 66-70. https://doi.org/10.1038/s41586-024-07176-8

Gravity simulators are laboratory systems in which small excitations such as sound or surface waves behave as fields propagating on a curved spacetime geometry. The analogy between gravity and fluids requires vanishing viscosity, a feature naturally... Read More about Rotating curved spacetime signatures from a giant quantum vortex.

Analog vacuum decay from vacuum initial conditions (2024)
Journal Article
Jenkins, A. C., Braden, J., Peiris, H. V., Pontzen, A., Johnson, M. C., & Weinfurtner, S. (2024). Analog vacuum decay from vacuum initial conditions. Physical Review D, 109(2), Article 023506. https://doi.org/10.1103/physrevd.109.023506

Ultracold atomic gases can undergo phase transitions that mimic relativistic vacuum decay, allowing us to empirically test early Universe physics in tabletop experiments. We investigate the physics of these analog systems, going beyond previous analy... Read More about Analog vacuum decay from vacuum initial conditions.

Sound-ring radiation of expanding vortex clusters (2022)
Journal Article
Geelmuyden, A., Erne, S., Patrick, S., Barenghi, C. F., & Weinfurtner, S. (in press). Sound-ring radiation of expanding vortex clusters. Physical Review Research, 4(2), Article 023099. https://doi.org/10.1103/PhysRevResearch.4.023099

We investigate wave-vortex interaction emerging from an expanding compact vortex cluster in a two-dimensional Bose-Einstein condensate. We adapt techniques developed for compact gravitational objects to derive the characteristic modes of the wave-vor... Read More about Sound-ring radiation of expanding vortex clusters.

Interferometric Unruh Detectors for Bose-Einstein Condensates (2020)
Journal Article
Gooding, C., Biermann, S., Erne, S., Louko, J., Unruh, W. G., Schmiedmayer, J., & Weinfurtner, S. (2020). Interferometric Unruh Detectors for Bose-Einstein Condensates. Physical Review Letters, 125(21), Article 213603. https://doi.org/10.1103/PhysRevLett.125.213603

The Unruh effect predicts a thermal response for an accelerated detector moving through the vacuum. Here we propose an interferometric scheme to observe an analogue of the circular Unruh effect using a localized laser coupled to a Bose-Einstein conde... Read More about Interferometric Unruh Detectors for Bose-Einstein Condensates.

Unruh and analogue Unruh temperatures for circular motion in 3+1 and 2+1 dimensions (2020)
Journal Article
Biermann, S., Erne, S., Gooding, C., Louko, J., Schmiedmayer, J., Unruh, W. G., & Weinfurtner, S. (2020). Unruh and analogue Unruh temperatures for circular motion in 3+1 and 2+1 dimensions. Physical Review D, 102(8), Article 085006. https://doi.org/10.1103/PhysRevD.102.085006

The Unruh effect states that a uniformly linearly accelerated observer with proper acceleration a experiences Minkowski vacuum as a thermal state in the temperature Tlin=a/(2π), operationally measurable via the detailed balance condition between exci... Read More about Unruh and analogue Unruh temperatures for circular motion in 3+1 and 2+1 dimensions.

Quasinormal Mode Oscillations in an Analogue Black Hole Experiment (2020)
Journal Article
Torres, T., Patrick, S., Richartz, M., & Weinfurtner, S. (2020). Quasinormal Mode Oscillations in an Analogue Black Hole Experiment. Physical Review Letters, 125(1), Article 011301. https://doi.org/10.1103/PhysRevLett.125.011301

The late stages of the relaxation process of a black hole are expected to depend only on its mass and angular momentum and not on the details of its formation process. Inspired by recent analogue gravity experiments, which demonstrate that certain bl... Read More about Quasinormal Mode Oscillations in an Analogue Black Hole Experiment.

Analog cosmology with two-fluid systems in a strong gradient magnetic field (2019)
Journal Article
Fifer, Z., Torres, T., Erne, S., Avgoustidis, A., Hill, R. J. A., & Weinfurtner, S. (2019). Analog cosmology with two-fluid systems in a strong gradient magnetic field. Physical Review E, 99(3), Article 031101(R). https://doi.org/10.1103/physreve.99.031101

We propose an experiment combining fluid dynamics and strong magnetic field physics to simulate cosmological scenarios. Our proposed system consists of two immiscible, weakly magnetized fluids moved through a strong gradient magnetic field. The diama... Read More about Analog cosmology with two-fluid systems in a strong gradient magnetic field.

Black hole quasibound states from a draining bathtub vortex flow (2018)
Journal Article
Patrick, S., Coutant, A., Richartz, M., & Weinfurtner, S. (2018). Black hole quasibound states from a draining bathtub vortex flow. Physical Review Letters, 121(6), Article 061101. https://doi.org/10.1103/physrevlett.121.061101

Quasinormal modes are a set of damped resonances that describe how an excited open system is driven back to equilibrium. In gravitational physics these modes characterize the ringdown of a perturbed black hole, e.g., following a binary black hole mer... Read More about Black hole quasibound states from a draining bathtub vortex flow.

Towards the cold atom analog false vacuum (2018)
Journal Article
Braden, J., Johnson, M. C., Peiris, H. V., & Weinfurtner, S. (2018). Towards the cold atom analog false vacuum. Journal of High Energy Physics, 2018(7), https://doi.org/10.1007/jhep07%282018%29014

Analog condensed matter systems present an exciting opportunity to simulate early Universe models in table-top experiments. We consider a recent proposal for an analog condensed matter experiment to simulate the relativistic quantum decay of the fals... Read More about Towards the cold atom analog false vacuum.