Tuesday 26th February: STP Seminar – “Thermodynamics of precision in quantum non-equilibrium steady states”
Title: “Thermodynamics of precision in quantum non-equilibrium steady states”
Speaker: Dr. Giacomo Guarnieri (TCD)
Abstract: We investigate the fundamental trade-off between current fluctuations and entropy production for systems in non-equilibrium steady states (NESS). We use the technique of non-equilibrium statistical operators of McLennan/Zubarev form and illustrate how the entropy production can be expressed as a quantum relative entropy. Furthermore, by exploiting the geometry of the manifold of NESS states, we use parameter estimation in order to bound the co-variance of the currents in the NESS by the entropy production. Since our proof is geometrical, this fundamental result generalizes the thermodynamics of precision and the thermodynamic uncertainly beyond the classical Markovian paradigm. This result promises to evolve our understanding of the delicate relationship between fluctuations and quantum coherence in autonomous thermal machines.
Time: Tuesday, February 26, 2019. 2.30 pm
Location: Lecture Room, 1st Floor, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4
Incredible research from @tcdastro scientists, working with @DIAS_Dublin and @Obs_Paris colleagues, has shone a light on how the exotic but poorly understood “fourth state of matter” behaves in the Sun's atmosphere.
Customs including bonfires🔥 goddess celebration, banishing evil spirits 👺and festivals of feasting and dancing. Traditions varied depending Celtic regions as did the name of the goddess 😇
The #SummerSolstice, the day when there are more hours of daylight than any other time of the year. Due the axial tilt of the earth being at its closest to the sun. It was one of the sacred Celtic days which they would celebrate through a variety of customs.