CERN Accelerating science

Scientific Seminars and Workshops

Latest additions:
2025-09-02
12:38
Discussion / Caprini, Chiara (speaker) (CERN)
2025 - 2486. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-09-02
12:38
Gravitational waves from first order phase transitions: progress and problems / Hindmarsh, Mark (speaker) (University of Helsinki, University of Sussex)
I review calculations of gravitational waves from the fluid flows generated by first order phase transition in the early universe, summarise the current status in simulations and modelling, and suggest areas where further progress can be made in preparation for the LISA mission..
2025 - 3399. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-09-02
12:27
Curvature perturbation from first-order phase transitions & A positive-definite formulation of tunneling / Jinno, Ryusuke (speaker) (Kobe University)
This talk is consists of two parts. In the first part I will talk about curvature perturbation produced in very strong first-order phase transitions. [...]
2025 - 2937. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
13:23
GW fingerprints of inverse FOPTs / Barni, Giulio (speaker)
Building upon the recently proposed concept of inverse FOPT, we investigate their GW signatures. We outline how these transitions differ thermodynamically and hydrodynamically from standard ones and analyse the resulting GW emission from the plasma. [...]
2025 - 415. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
13:23
Cosmological first-order phase transitions with large bubbles: beyond conformal fluid and flat spacetime / Giombi, Lorenzo (speaker) (University of Helsinki)
Using semi-analytical models, we investigate the power spectrum of gravitational waves generated by sound waves in the plasma during a first-order phase transition in new unexplored scenarios. (i) The phase transition is accompanied by a change of the equation of state from that of pure radiation. [...]
2025 - 2494. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
13:23
From equations of state to gravitational wave spectra / Mäki, Mika (speaker)
The Sound Shell Model provides a computationally efficient way of calculating the gravitational wave spectra of cosmological first-order phase transitions. Based on the Sound Shell Model, we have created the simulation framework PTtools and integrated it with our web-based plotting utility PTPlot. In this talk I will show how to use PTtools and PTPlot to easily compute Sound Shell Model power spectra for arbitrary equations of state. [...]
2025 - 372. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
13:23
Gravitational wave production: the interplay between vortical and compressional motions / Salome, Madeline Clara (speaker) (Universite de Geneve (CH))
In the early Universe, during a phase transition, the surrounding plasma is subjected to a fluid motion sourcing gravitational waves. This fluid motion can be composed of compressional and vortical motions. [...]
2025 - 301. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
13:23
Exploring Parameter Dependence in the Double-Broken Power Law for GW Signals / Madge Pimentel, Eric (speaker) (IFT-UAM/CSIC)
The gravitational wave spectrum from sound wave contributions is typically modeled as a double-broken power law with fixed spectral slopes. However, the intermediate slope depends on phase transition parameters, which can help resolve degeneracies when reconstructing these parameters. [...]
2025 - 420. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
13:23
The complicated story of Primordial Black Holes production in cosmological Phase Transitions / Toczek, Piotr (speaker) (University of Warsaw)
In this talk, I will investigate the formation of Primordial Black Holes as the result of the collapse of energy density fluctuations originating from supercooled first-order phase transitions. I will present the results of a simplified approach, where the energy density fluctuations are evolved within the limit of flat FRW Universe. [...]
2025 - 366. TH institutes; Advancing gravitational wave predictions from cosmological first-order phase transitions External links: Talk details; Event details In : Advancing gravitational wave predictions from cosmological first-order phase transitions

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2025-08-29
10:20
ATS Seminar - High Temperature Superconductivity: status, present and future applications / Ballarino, Amalia (speaker) (CERN)
Speaker Amalia BALLARINO (TE-MSC-HSD)   Abstract In recent years, High Temperature Superconductors (HTS) have attracted growing interest. Their intrinsic characteristics — specifically their ability to carry high currents at higher temperatures and in stronger magnetic fields compared to conventional superconductors — hold the potential to revolutionize a wide range of technologies [...]
2025 - 6327. A&T Seminar External link: Event details In : ATS Seminar - High Temperature Superconductivity: status, present and future applications

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