Macroscopic wave function: Decoherence versus spontaneous symmetry breakdown, Józef Spałek

Channel:
Poland Copernicus
Subscribers:
192,000
Published on ● Video Link: https://www.youtube.com/watch?v=bKQpr-ejsYo


Duration: 36:32
608 views
7

In my talk I address the question to what extent the so-called macroscopic wave function can be regarded as a quantum entity and in what sense it reflects classical properties of a condensed system. This type of wave function appears when describing either superfluid or superconducting condensates and is defined as statistical average of a quantum field. Additionally, such a wave function plays role of the order parameter. After describing the fundamental concepts I ask why such a wave function normally does not decohere for the macro condensed system, but may show such a feature for small (nanoscopic) system size, an important factor when storing densely quantum-state information. If time allows, I shall provide two remarks about Einstein’s statistical interpretation of the wave function and related problems.

http://22kmc.copernicuscenter.edu.pl



Other Videos By Copernicus


2018-11-12Czytamy naturę #1 | Charon, rdzeń kręgowy, ameby
2018-11-08Czytamy naturę | Zapowiedź odcinka pierwszego
2018-11-06Czy mózg jest komputerem? | Zapowiedź kursu na CopernicusCollege.pl
2018-11-05Świat najlepszy z możliwych? Tadeusz Pabjan
2018-10-29Ważniejsze niż Wszechświat – wykład ks. prof. Michała Hellera
2018-10-26Himalayan topology for parameters of physics, Jerzy Król
2018-10-25What makes the universal and existential quantifiers classical? Stanisław Krajewski
2018-10-23Zeitgeber. Skąd życie wie która godzina? Szymon Drobniak
2018-10-22Anthropic selection of physical constants, Mariusz Dąbrowski
2018-10-21The classical limit of quantum theory: Why we do not see Schrödinger cats everyday? Karol Życzkowski
2018-10-20Macroscopic wave function: Decoherence versus spontaneous symmetry breakdown, Józef Spałek
2018-10-18Astronomia wielonośnikowa: nowi gwiezdni posłańcy, Sebastian Szybka
2018-10-17Emergence of Riemannian structure from noncommutative differentials, Shahn Majid
2018-10-16The operator product of quantum observables, Klaus Fredenhagen
2018-10-15Ehrenfest's theorem revisited, Henryk Arodź
2018-10-12Quantum entanglement and emergence of the classical Leibnitz’s principle, Marek Kuś
2018-10-11The theory of ideas and Plato’s philosophy of mathematics, Bogdan Dembiński
2018-10-11Nowy Pluton i Charon: co wiemy trzy lata po wizycie New Horizons? Łukasz Lamża
2018-10-11Points, lack thereof, Fedele Lizzi
2018-10-04Kryzys w badaniach nad mózgiem i umysłem? Mateusz Hohol
2018-10-01Piotr Winkielman, Social cognition and emotions


Tags:
Centrum Kopernika Badań Interdyscyplinarnych
Centrum Kopernika
Copernicus Center for Interdisciplinary Studies
Copernicus Center
Kraków
qyantum mechanics
physics
classical physics
general relativity
philosophy
conference
wave function
Decoherence
symmetry
symmetry breakdown
spontaneous symmetry breakdown
superfluid
superconducting condensates
quantum entity
statistical interpretation