# Seminars and Journal Clubs

Friday, February 6, 2015 Matteo Caiaffa ## A sufficient condition for complete positivityThe evolution equations of the statistical operator are (often) subject to the natural request of complete positivity (CP). |
Wednesday, January 21, 2015 Matteo Carlesso ## Non-Markovianity - Semigroup DefinitionA way to construct a dynamics which seems to present memory effects will be presented. A specific example will be presented and studied. |

Friday, December 12, 2014 Sina Türeli (PhD student of mathematics, SISSA) ## Basic Concepts on Ergodic TeoryIn this talk (one or two talks depending on how it goes) I will outline basic concepts about ergodic theory, Boltzmann's ergodic hyphothesis and the concept of a deterministic system behaving in |
Friday, November 28, 2014 Mohammad Bahrami ## Gisin's theorem and no-faster-than-light signalingOne way to study possible theories beyond standard quantum theory is to modify Schrodinger equation by adding new terms. |

Friday, November 7, 2014 André Großardt ## Faster than light I: Axiomatic foundations of special relativity, tachyons, and causal paradoxesThis talk is supposed to be the first in a series, discussing the problem of faster-than-light signalling appearing in realistic quantum theories as a consequence of quantum non-locality.
We review h |
Thursday, October 30, 2014 Sandro Donadi ## The conditional wave function and its dynamicsAt the end of the previous seminar we quickly introduced the concept of conditional wave function. |

Friday, October 24, 2014 Sandro Donadi ## Bohmian MechanicsIn this seminar we will give an introduction to Bohmian Mechanics (also known as De Broglie-Bohm theory). |
Friday, October 17, 2014 Marco Bilardello ## Gross-Pitaevskii equation and superfluidity in Bose-Einstein condensatesWe will see a brief review on the following topics:
i) Gross - Pitaevskii equation and Bogoliubov theory of a Bose - Einstein condesate.
ii) Superfluidity, hydrodynamics and their relation with B |

Friday, September 12, 2014 Marco Bilardello ## Decoherence effects on 1D quasi-condensatesIn the last yers, several experimental works have observed decoherence effects on low dimensional ultracold atoms systems. |
Thursday, July 24, 2014 André Großardt ## Light slower than the speed of lightRecently it has been claimed that in presence of a classical gravitational potential the speed of light gets a correction coming from the interaction of virtual electron-positron pairs with the gravit |