Colloquium

Author: 
Gia Dvali
Date: 
Thursday, May 22, 2014
Abstract: 
We discuss a corpuscular theory in which black holes and cosmological spaces are composite entities of multiple soft constituents in a well-defined quantum sense.
Author: 
Luciano Maiani
Date: 
Thursday, June 5, 2014
Abstract: 
I shall start by recalling a few salient features of LHC construction and of the Higgs boson discovery.
Author: 
Ignacio Cirac
Date: 
Friday, March 6, 2015
Abstract: 
Many-body quantum systems are very hard to describe and simulate in general, since the dimension of the state space grows exponentially with the number of particles, volume, etc.
Author: 
German Sierra
Date: 
Wednesday, February 22, 2017
Abstract: 
The Nobel Prize in Physics this year has fallen in three theoretical physicists, David Thouless, Duncan Haldane and Michael Kosterlitz.The Royal Swedish Academy of Sciences has granted this prestigious award for its "theoretical discoveries of topological phase transitions andtopological phases of matter". These findings date from the 70s and 80s of last century, and sowed the seeds of a new paradigm for understanding the nature that can be summed up in the term "topological matter." Topology is the branch of mathematics that describes the properties of geometric objects
Author: 
Mark van Raamsdonk
Date: 
Wednesday, May 10, 2017
Author: 
I. Cirac
Date: 
Friday, May 19, 2017
Abstract: 
Tensor Networks have emerged as the natural language to understand and classify exotic properties of quantum many-body systems, such as topological order.
Author: 
Herbert Neuberger
Date: 
Thursday, June 1, 2017
Abstract: 
Lattice Dirac fermions used to present a kids' fine-tuning problem. This problem has been solved. In continuum there is no fine tuning problem for fermions but there is one for scalars. It is suggested that using a wavelet based phase-space cell decomposition the grown-ups' fine tuning problem also can be solved.
Author: 
Álvaro de Rújula
Date: 
Wednesday, November 23, 2016
Abstract: 
In a few years —right before and after the November Revolution of 1974— particle physics, with full wind in its sails, changed very significantly. Quarks, somewhat reluctantly invented during the 1963/64 Christmas holidays, turned out to be for real. QCD and the rest of the Standard Model evolved from being considered a tropical disease affecting an overwhelmed minority of field theorists to being spoused by practically ``everybody”. I shall revisit, from the very personal point of view of a witness, the main theoretical and observational aspects of QCD in its infancy.
Author: 
Álvaro de Rújula
Date: 
Wednesday, November 23, 2016
Abstract: 
In a few years —right before and after the November Revolution of 1974— particle physics, with full wind in its sails, changed very significantly. Quarks, somewhat reluctantly invented during the 1963/64 Christmas holidays, turned out to be for real. QCD and the rest of the Standard Model evolved from being considered a tropical disease affecting an overwhelmed minority of field theorists to being spoused by practically ``everybody”. I shall revisit, from the very personal point of view of a witness, the main theoretical and observational aspects of QCD in its infancy.

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