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SUMMARY:MechE Colloquium: Parametric oscillators in the nonlinear regime
DTSTART:20191203T121500
DTEND:20191203T131500
DTSTAMP:20260510T165129Z
UID:a757e7e2459e5b2f7433b52a1e83a7f5de1fab37b1a8c243809a17c2
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Oded Zilberberg\,  Institute for Theoretical Physics\, E
 TH Zürich\nAbstract:\nThere are numerous physical effects that rely on pa
 rametric driving to amplify\, cool\, squeeze or couple resonating systems.
  The parametric driving arises from intrinsic quadratic nonlinearities in 
 the system or via time-dependent modulation of the resonator's eigenfreque
 ncy\, which can be realized in optical\, electric and mechanical systems. 
 In the nonlinear regime the parametric system exhibits various period-doub
 ling bifurcations into phase states. We exploit this property to address r
 ecent physical concepts\, e.g.\, amplified sensing close to a dissipative 
 phase transition\, as well as classical and quantum many-body time crystal
 s. Furthermore\, in coupled nonlinear parametric networks\, we study emerg
 ent collective behavior that strongly depends also on the topology of the 
 network's geometry. These resulting effects are essential for harnessing s
 uch oscillator networks as directional couplers\, as well as annealing sim
 ulators for optimization problems.\n \nBio:\nOded Zilberberg is a theoret
 ical condensed matter physicist with broad interests and a particular affi
 nity for collaboration with experimental groups. After studies in Israel a
 nd Switzerland (B.Sc. at Hebrew University 2001-2004\, M.Sc. at Basel Univ
 ersity 2005-2007\, and Ph.D. at the Weizmann Institute 2008-2013)\, he mov
 ed to ETH Zurich for a PostDoc (2013-2015)\, joined the ABB research labor
 atory in Dättwil for a year\n(2015-2016) and then assumed an SNF assistan
 t professorship that he started in June 2016 at ETH Zurich\, where he now 
 leads his research group on quantum engineered systems (QUEST). The resear
 ch in his group consists of three main pillars\, (i) mesoscopics/quantum e
 lectronic transport\, (ii) quantum simulation of matter including topology
  and synthetic dimensions\, and (iii) parametric nonlinear phenomena.
LOCATION:MED 0 1418 https://plan.epfl.ch/?room==MED%200%201418
STATUS:CONFIRMED
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