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## Thursday 3rd May: STP Seminar – “Black Holes, Stokes Flows & Transport at Strong Coupling”

Title: Black holes, Stokes flows and transport at strong coupling

Speaker: Aristomenis Donos (U. Durham)

Abstract: Certain strongly coupled materials, such as the cuprate superconductors exhibit fascinating, yet hard to explain transport properties. Holography provides a consistent framework to study the phase diagram and transport properties of strongly coupled matter at finite temperature and chemical potential. In this context, I will discuss how low frequency transport is fixed via a an “auxiliary fluid” residing on the horizon of black holes relevant to phases of holographic matter with broken translations. This observation provides powerful techniques to extract the conductivity properties of holographic ground states with reduced symmetries.

Time: Thursday 3rd May 2018, 2.30pm.

Place: Lecture Room, 1st Floor, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4

## 2018 Spring Seminar Schedule

Unless stated otherwise seminars will be held at 2.30pm in the STP Lecture Theatre, 10 Burlington Road

May 28-29, Irish Quantum Foundations 2018 will be held at DCU

May 15, Alessio Marrani (U. Padova)

May 8, Ricardo Schiappa (ITF Lisbon)

May 3, Aristomenis Donos (U. Durham)

April 19, Masud Haque (NUI Maynooth)

April 10, John Goold (TCD)

March 27, Peter Coles (NUI Maynooth)

March 20, Charles Nash (DIAS)

March 15, Andrei Parnachev (TCD)

March 6, Joe Fitzsimons (Singapore U. of Technology and Design)

February 15, Dionigi M.T. Benincasa (DIAS)

February 6, Ruth Britto (Trinity College Dublin)

## Thursday 19th April: STP Seminar – “Non-equilibrium Dynamics in Isolated Quantum Systems”

Title: Non-equilibrium Dynamics in Isolated Quantum Systems

Speaker: Masud Haque (NUI Maynooth)

Abstract: Quantum many-body physics has traditionally focused on equilibrium properties and low-energy excitations. However, in recent years, motivated by novel experimental possibilities, the study of quantum matter far from equilibrium is emerging as an active and exciting field of research. In the absence of external mechanisms for reaching equilibrium, the behavior of an isolated quantum system poses many new challenges to our understanding of quantum matter. I will present examples of a few classes of dynamical phenomena in isolated quantum systems, highlighting effects and questions that arise explicitly due to isolation.

Time: Thursday 19th April 2018, 2.30pm.

Place: Seminar Room, School of Celtic Studies, DIAS, 10 Burlington Road, Dublin 4.

DIAS-STP-18-04

# Alternative Description of Magnetic Monopoles in Quantum Mechanics

Samuel Kováčik and Peter Prešnajder

This preprint is available on Arxiv.org

Details provided:

• Date of publication : 10/04/18

DIAS-STP-18-03

# On the Morse-Bott Property of Analytic Functions on Banach Spaces with Lojasiewicz Exponent One Half

P. Feehan

This preprint is available on Arxiv.org

Details provided:

• Date of publication : 30/03/18

## Tuesday 10th April: STP Seminar – “Explorations in non equilibrium thermodynamics of quantum systems: work and heat statistics”

Title: Explorations in non equilibrium thermodynamics of quantum systems: work and heat statistics

Speaker: John Goold (TCD)

Abstract: This talk will be an overview of some research I have been doing in the field of non equilibrium thermodynamics of quantum systems over the past few years. After an elementary introduction to some key concepts I will discuss some aspect of quantum thermodynamics, in particular focusing on work statistics, fluctuation theorems and their experimental extraction. Time permitting I will also introduce heat statistics and using the operational framework of completely positive, trace preserving operations I show how a lower bound for the heat exchange in a Landauer erasure process on a quantum system can be derived. I will try to aim the talk at non experts.

Time: Tuesday 10th April 2018, 2.30pm.

Place: Lecture Room, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4.

## DIAS Research Forum 2018 – Friday 11th May

An inter-disciplinary research forum has been scheduled for Friday 11 May 2018, 3-5pm at Burlington Road. The forum is intended to be an informal event that provides post-doctoral scholars and PhD students with the opportunity to share and discuss their current research with scholars and staff from across the three schools of DIAS.

There will be no main speakers at the event. Instead, participants will be assigned a space where they can share and discuss their research interests. Participants are encouraged to present a poster which visually complements their research, and allows them to explain what they do to all DIAS staff. In instances where a poster presentation is not appropriate, participants should feel free to develop an alternative approach. Posters should ideally be printed in A1 portrait format, as space is limited.

The forum presents a great opportunity for scholars to sharpen their academic presentation and public outreach skills in an informal setting, while also getting to know colleagues from across the Institute.

The organisers strongly encourage scholars from all three schools to participate in the forum. A coordinator from each section will liaise with participants regarding their presentations.

Participants are asked to register here prior to Wednesday 9 May.

Section Coordinators:
Celtic Studies - Eibhlín Nic Dhonncha eibhlin@celt.dias.ie
CP, Astrophysics - Eileen Flood eflood@cp.dias.ie & Anne Grace ag@cp.dias.ie
CP, Geophysics - Clare Horan choran@cp.dias.ie
Theoretical Physics - George Rogers grogers@stp.dias.ie
Please contact your section coordinator with any queries.

All DIAS staff are welcome to attend.

DIAS Research Forum Poster 2018

## Tuesday 27th March: STP Seminar – “The Wave Mechanics of Large-scale Structure”

Title: The Wave Mechanics of Large-scale Structure

Speaker: Peter Coles (U. Cardiff & NUI Maynooth)

Abstract: There has been been a resurgence of interest recently in an idea, originally raised in a seminal paper by Widrow & Kaiser (1993), that the equations describing the evolution of a self-gravitating fluid can be rewritten in the form of a Schrodinger equation coupled to a Poisson equation determining the gravitational potential. In this talk I’ll discuss some of the merits of this idea and explain why it is of topical interest, illustrating the talk with examples of recent work.

Time: Tuesday 27th March 2018, 2.30pm.

Place: Lecture Room, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4.

## Tuesday 20th March: STP Seminar – “From Hilbert’s 16th Problem to Physics”

Title: From Hilbert’s 16th Problem to Physics

Speaker: Charles Nash (NUI Maynooth)

Abstract: We shall describe a link between Hilbert’s sixteenth problem (part (i)) concerning real algebraic curves and condensed matter physics. The central result is some work of Kenyon and Okounkov (2006). The physics involves so called dimer problems for periodic bipartite and non-bipartite graphs. A differential geometric approach will be introduced to help clarify matters. It transpires that real K-theory underlies the systems studied.

Time: Tuesday 20th March 2018, 2.30pm.

Place: Lecture Room, School of Theoretical Physics, DIAS, 10 Burlington Road, Dublin 4.

DIAS-STP-18-01

# Magnetic Monopoles in Noncommutative Quantum Mechanics 2

S. Kováčik and P. Prenajnajder

This preprint is available on Arxiv.org