Date: 07.11.2022
Place: Room 416 10:15
Subject: Phase space description of quantum optics
Person: Nazarii Sudak
Abstract: A classical particle has a definite position and momentum and is therefore represented as a point in phase space. When there is a set of particles, the probability of finding a particle in a certain small volume of phase space is given by the probability distribution function. This is not true for a quantum particle due to the uncertainty principle. Instead, one can introduce a quasi-probability distribution, which is not required to satisfy all the properties of a normal probability distribution function. For example, the Wigner function becomes negative for states that have no classical counterparts, so it can be used to identify non-classical states. Connection to other quasiprobability functions such as Glauber’s-Sudarashan P function and Husimi Q function will also be shown.

Date: 13.01.2020
Place: Room 422 10:15
Subject: Dydaktyczne wprowadzenie do teorii splątania pól kwantowych – kontynuacja
Person: dr hab. Lech Jakóbczyk

Date: 16.12.2019
Place: Room 422 10:15
Subject: Dydaktyczne wprowadzenie do teorii splątania pól kwantowych.
Person: dr hab. Lech Jakóbczyk

Date: 10.06.2019
Place: Room 422 10:15
Subject: Dydaktyczne wprowadzenie do teorii splątania pól kwantowych.
Person: dr hab. Lech Jakóbczyk

Date: 10.06.2019
Place: Room 422 10:15
Subject: Fala elektromagnetyczna w modelu Friedmana
Person: dr hab. Bernard Jancewicz
Abstract: –

Date: 01.04.2019
Place: Room 422 10:15
Subject: Streszczenie wyników badań nad teorią korelacji kwantowych dla układów dwu – i trój – kuditowych
Person: dr Artur Barasiński
Abstract: –

Date: 03.12.2018
Place: Room 422 10:15
Subject: Aspekty struktur rozgłoszeniwych w teorii dekoherencji
Person: dr hab. Jarosław Korbicz (CTP Warsaw)
Abstract: –

Date: 15.10.2018
Place: Room 422 10:15
Subject: Techniczne ( i nie tylko) uzupełnienie referatu na seminarium instutytowym
Person: dr hab. Jarosław Korbicz (CTP Warsaw)
Abstract: –

Date: 04.06.2018
Place: Room 422 10:15
Subject: Unruh effect for massive fields cannot be detected
Person: dr hab. Andrzej Dragan (Uniwersity of Warsaw)
Abstract: Massive particles created in a relativistically accelerated reference frame, as predicted by the Unruh effect, can only be found in a tiny layer above the event horizon, whose thickness corresponds to a single Compton wavelength. This is beyond the reach of any detector and suggests that the Unruh effect may not ever be directly observed for massive fields. The case of massless particles is also examined, for which qualitatively different behaviour is observed in a low-⁠acceleration regime, suggesting that an observation of the Unruh effect for massless particles is more promising.

Date: 14.05.2018
Place: Room 422 10:15
Subject: Odwzorowanie momentu w teorii informacji kwantowej
Person: prof. Adam Sawicki (CTP Warsaw)
Abstract: –