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UK-QFT VIII

28 November 2019
King's College London
Europe/London timezone

Questions and enquiries can be directed to Dries Seynaeve.

Session

Session 3

28 Nov 2019, 15:30
Seminar Room 3, Prideaux Building, St Thomas' Campus (King's College London)

Seminar Room 3, Prideaux Building, St Thomas' Campus

King's College London

163 Lambeth Palace Rd, South Bank, London SE1 7JU

Conveners

Session 3

  • Peter Millington (University of Nottingham)

Presentation materials

There are no materials yet.

  1. 4. Quantum fields as sensors for fundamental physics
    Prof. Ivette Fuentes (University of Nottingham)
    28/11/2019, 15:30
    Talk

    Quantum sensors that are used to measure gravitational fields and detect dark energy typically use single particle interferometric techniques that are limited by the time of flight in the interferometer arm. In this talk I will present a new detection method that uses quantum resonances and the sensitivity of collective excitations (phonons) to gravitational fields. When phonons in a...

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  2. 8. Free energy dependence on spatial geometry for (2+1)-dimensional QFTs
    Mr Krai Cheamsawat (Imperial College London)
    28/11/2019, 16:00
    Talk

    We consider (2+1)d-QFT at finite temperature on a product of time with a static spatial geometry. Generically, free energy of QFTs on curved spacetime can be very difficult to calculate even for free field theories. For perturbations of flat space we show that free energy difference goes quadratically with perturbation amplitude and may be computed from the linear response of the stress...

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  3. 10. Production of 't Hooft-Polyakov monopoles from strong magnetic fields
    Mr David Ho (Imperial College London)
    28/11/2019, 16:30
    Talk

    The production rate of monopoles from strong magnetic fields at high temperatures is determined by an unstable `sphaleron' field configuration. In this talk I will present the results of a study of this sphaleron in the $SU(2)$ Georgi-Glashow model using lattice techniques. I will show how the sphaleron solution changes as the magnetic field strength is increased, and discuss the...

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