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Colloquia Archive 2017
This event is a Colloquium.

Theoretical and Phenomenological Aspects of Top Quark Physics—Michal CZAKON
The year 2015 has marked the 20th anniversary of the discovery of
the topquark at the Tevatron protonantiproton collider at Fermilab near
Chicago. The topquark not only still is the heaviest known elementary
particle, but it also interacts through every known fundamental force of
nature. It seems surprising that the ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Viral electrostatics—Rudolf PODGORNIK
I will present several models of the effects of electrostatic
interactions on viruses. Starting from a discussion of charge distribution and
the pertaining charge regulation description, I will explore in detail several
examples of the role of chargecharge interactions for capsid stability as
well as the interactions between the capsid ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Prime Suspects and Coprime Accomplices; Quantum Tales in Number Theory—Giuseppe MUSSARDO
Number Theory is a subject full of curiosities, amusing problems
and compelling challenges. The purpose of the seminar is to explore  within
the context of simple arguments  the rich and elegant interplay that exists
between the realms of numbers and the world of quantum mechanics. In
particular we discuss the ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

The Universe as a hologram—Dario MARTELLI
String theory is the evolution of theoretical constructions developed during the past century, embracing and extending general relativity and quantum mechanics. One of the lessons of string theory has been the discovery of relationships between seemingly different theories, called dualities. In particular, the gauge/gravity duality postulates that a theory ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

News of the Standard Model Effective Field Theory: theory, tools and LHC strategy—Michael TROTT
With the discovery of a Higgs like scalar in 2012 at the LHC, and
the lack of discovery of beyond the Standard Model states with masses
proximate to the electroweak scale, it is clear that new theoretical
approaches to interpreting the ever growing LHC data set are of very great ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Is the Universe lopsided?—Douglas SCOTT
Since the standard cosmological model is such a good fit to the cosmic microwave background anisotropy data, a great deal of attention has focused on any signs of "physics beyond the standard model". One particular largescale "anomaly" that has been noted is that there appears to be more power on ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Does Quantum Gravity constrain LargeField Inflation?—Arthur HEBECKER
I will describe the theoretical interest in largefield inflation
and its relation to potential future observations, e.g. through primordial
gravitational waves. I will outline the possible fundamental obstructions to
realizing such inflationary scenarios, both in string theory and in quantum
gravity in general. The focus will in particular be ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Studying galaxy formation with dynamical modelling—Michele CAPPELLARI
I introduce the key techniques used to model the dynamics of
galaxies and illustrate how these method have contributed to our understanding
of the mechanism by which galaxies form and evolve.
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Designing Rapid Phase Transitions and ShapeShifting Materials Using Patterned Colloids—Ronald LARSON
The recent development of methods of conferring welldefined shape
and interaction anisotropies to Brownian colloidal particles renders their
phase behavior and dynamics closer to that of molecules, but on greatly
expanded spatial and temporal scales. We focus here especially on interaction
anisotropy, which is present in the simplest form in ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Flavour Expedition to the Zeptouniverse—Andrzej BURAS
After the completion of the Standard Model (SM) through the Higgs discovery particle physicists are waiting for the discovery of new particles either directly with the help of the Large Hadron Collider (LHC) or indirectly through quantum fluctuations causing certain rare processes to occur at different rates than predicted by ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

The Origin of Matter in the Universe—Tsutomu YANAGIDA
Paul Dirac proposed the baryon symmetric universe in 1933. This
proposal has become very attractive now, since it seems that all preexisting
asymmetry would have been diluted if we had an inflationary stage in the early
universe. However, if our universe began baryon symmetric, the tiny imbalance
in numbers of ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Scattering amplitudes: a bridge between modern mathematics and precision physics—Claude DUHR
To be announced
This event is a Colloquium.

Where highenergy physics and statistical mechanics meet—Christian MAES
In the past statistical physics and elementary particle
physics have had many interesting interactions and various topics have been
held in common. We have in mind studies of phase transitions and symmetry
breaking, the renormalization group and universality, or the Gibbs formalism
itself which is also the underlying structure of ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Star Formation—Ralf KLESSEN
Stars and star clusters are the fundamental visible building blocks
of galaxies at present days as well as in the early universe. They form by
gravitational collapse in regions of high density in the complex multiphase
interstellar medium. The process of stellar birth is controlled by the
intricate interplay between ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Undecidability of the spectral gap—Toby CUBITT
The spectral gap  the difference in energy between the ground state
and the first excited state  is of central importance to quantum manybody
physics. It determines the phase diagram at low temperature, with quantum
phase transitions and critical phenomena occurring when the gap vanishes. Some
of the most challenging and ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Pseudoobservables in Higgs Physics—Gino ISIDORI
In view of future highstatistics data, it is useful to define a framework for
precise determinations of the properties of the Higgs particle valid in
generic extensions of the Standard Model. As I will discuss, this goal can be
achieved with a limited set of socalled "PseudoObservables" (PO). The PO ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Majorana fermions in superconductors: in search of the Zen particle—Carlo BEENAKKER
Among the many exotic properties of topological superconductors, the
prediction that they can host Majorana fermions stands out both for its
fundamental interest and for possible applications in topological quantum
computing. To exchange (braid) pairs of Majoranas is the heroic experiment,
since it would identify them as a fundamentally new ...
Higgs Centre Seminar Room, JCMB
This event is a Colloquium.

Probabilities and Signalling in Quantum Field Theory—Jeff FORSHAW
I will talk about a way to compute transition probabilities that
works directly that the level of probabilities and not amplitudes. The
formalism guarantees that the initial and final states are always linked by a
chain of retarded propagators and it has a nice diagrammatic approach.
Higgs Centre Seminar Room, JCMB
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