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Meet other DPhils in a relaxed environment for a coffee and a chat. No booking needed.

The sessions aim to provide a space for DPhil students to meet others informally over the summer vacation, to discuss shared experiences of undertaking a DPhil at Oxford, and to help the University Counselling Service for DPhil students, by identifying common themes and topics for a series of potential term time workshops.

Join us at Oxford Botanic Garden for a relaxing guided tour with Wellbeing Outreach Officer, Dr Rodger Caseby and Education Officer, Dr Lauren Baker.

Journey through the garden's 400 year long history, learning about its original role as a medicinal garden and its transition through to modern day, with a seasonal focus on the Merton Borders. Bring your University card for free Garden entry – we look forward to seeing you soon.

Paul Balduf,  Postdoctoral Research Associate in Mathematical Physics: N1.02

Andrea Guzman, Undergraduate Studies Administrator: S0.15

Jaafar Alawieh, Systems Administrator: S2.43

Strong and Weak Random Walks on Signed Networks
Babul, S Tian, Y Lambiotte, R CoRR volume abs/2406.08034 (01 Jan 2024)
Tue, 26 Nov 2024
16:00
L6

Level repulsion and the Floquet quantum Ising model beyond integrability

Felix von Oppen
(Freie Universität Berlin)
Abstract

Motivated by a recent experiment on a superconducting quantum
information processor, I will discuss the Floquet quantum Ising model in
the presence of integrability- and symmetry-breaking random fields. The
talk will focus on the relation between boundary spin correlations,
spectral pairings, and effects of the random fields. If time permits, I
will also touch upon self-similarity in the dynamic phase diagram of
Fibonacci-driven quantum Ising models.
 

Tue, 22 Oct 2024
16:00
L6

Simultaneous extreme values of zeta and L-functions

Winston Heap
(Max Planck Institute Bonn)
Abstract
I will discuss a recent joint work with Junxian Li which examines joint distributional properties of L-functions, in particular, their extreme values. Here, it is not clear if the analogy with random matrix theory persists, although I will discuss some speculations. Using a modification of the resonance method we demonstrate the simultaneous occurrence of extreme values of L-functions on the critical line. The method extends to other families and can be used to show both simultaneous large and small values.
 



 

Tue, 15 Oct 2024
16:00
L6

The third moment of the logarithm of the Riemann zeta function

Maxim Gerspach
(KTH Royal Institute of Technology)
Abstract

I will present joint work with Alessandro Fazzari in which we prove precise conditional estimates for the third (non-absolute) moment of the logarithm of the Riemann zeta function, beyond the Selberg central limit theorem, both for the real and imaginary part. These estimates match predictions made in work of Keating and Snaith. We require the Riemann Hypothesis, a conjecture for the triple correlation of Riemann zeros and another ``twisted'' pair correlation conjecture which captures the interaction of a prime power with Montgomery's pair correlation function. This conjecture can be proved on a certain subrange unconditionally, and on a larger range under the assumption of a variant of the Hardy-Littlewood conjecture with good uniformity.

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