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SUMMARY:QSE Center Quantum Seminar series: Patrick Potts\, University of B
 asel
DTSTART:20230317T120000
DTEND:20230317T130000
DTSTAMP:20260920T172530Z
UID:f39c449ecdb7e773a7734fc6d472302409e5ee7e2e50a1099ac47226
CATEGORIES:Conferences - Seminars
DESCRIPTION:The Center for Quantum Science and Engineering will officially
  kick off a new monthly seminar series: “Quantum Seminar”\, to take pl
 ace on Fridays at lunch. This is a seminar series where we invite renowned
  young and established speakers to share with us their excellent science i
 n a relaxed and inspiring atmosphere around pizzas.\n\nThis Friday\, March
  17\, Patrick Potts from the University of Basel will talk about “Noncla
 ssical behavior in open quantum systems: wave-particle duality\, entanglem
 ent\, and thermo-kinetic uncertainty relations”.\n\nAbstract:\nA deeper 
 understanding of the differences between quantum and classical dynamics pr
 omises great potential for emerging technologies. Nevertheless\, some aspe
 cts remain poorly understood\, particularly concerning the role of quantum
  coherence in open quantum systems. It remains an open question when mesos
 copic quantum transport can be captured by a classical model and when such
  a model breaks down\, implying nonclassical behavior. In this talk\, I wi
 ll present recent results on fermionic and bosonic transport scenarios tha
 t shed light onto this question.\nIn a double-quantum dot\, coherence can 
 build up due to electrons traversing the system. On the one hand\, this co
 herence can result in entanglement and even nonlocality. On the other hand
 \, coherent dynamics may lead to a suppression of fluctuations causing vio
 lations of thermo-kinetic uncertainty relations that are valid for classic
 al processes. These effects\, which describe the breakdown of a classical 
 description\, are accompanied by a peak in coherence and occur when the in
 ter-dot tunneling is similar in magnitude to the system-bath coupling. A b
 osonic two-mode system may be operated as a heat engine when coupled to a 
 hot and a cold thermal reservoir. We compare such a quantum heat engine to
  two classical models\, one based on waves and one based on particles. We 
 find that while the average power output may be reproduced by the classica
 l models\, the fluctuations around this average may not. The wave model fa
 ils to describe the vacuum fluctuations while the particle model cannot ac
 hieve the same bunching as the quantum model. Our results shed light onto 
 the role of the wave-particle duality on transport scenarios and provide g
 uiding principles for the design of out-of-equilibrium devices that exhibi
 t nonclassical behavior.\n\nSign-up for pizzas by 10am March 15: https://
 doodle.com/meeting/organize/id/elRBWX1b\n\n 
LOCATION:CE 1 100 https://plan.epfl.ch/?room==CE%201%20100
STATUS:CONFIRMED
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