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SUMMARY:IMX seminar: Controlling Quantum Materials Using Coherent Optical 
 Driving
DTSTART:20220302T160000
DTEND:20220302T170000
DTSTAMP:20260407T101514Z
UID:faf54580bc7be354d0d80dbe89f03021fd6999415f08748fd9690efb
CATEGORIES:Conferences - Seminars
DESCRIPTION:Gregor Jotzu\nControlling Quantum Materials Using Coherent Opt
 ical Driving\n\nDr. Gregor Jotzu\nMax Planck Institute for the Structure a
 nd Dynamics of Matter\, Germany\n\nThe recent rapid progress in quantum te
 chnology has enabled essentially complete control of the quantum-mechanica
 l state of individual atoms and of the interactions between them. Extendin
 g this kind of control all the way to entire solids is now moving within r
 each and provides on-demand access to high-temperature superconductivity o
 r topologically protected transport. A crucial tool for achieving such con
 trol is the use of coherent driving with oscillating fields\, known as Flo
 quet engineering. I will first illustrate the success of this approach usi
 ng experiments with ultracold atoms trapped in crystals made of light. Mov
 ing on to real materials\, the strong fields accessible with pulsed lasers
  are now starting to enable coherent control of material properties on sub
 -picosecond time scales. I will show how driving graphene can change the t
 opology of its electronic bands\, leading to an ultrafast quantum Hall eff
 ect in the absence of a magnetic field. Furthermore\, I will present how l
 aser pulses can induce metastable superconducting properties in organic ma
 terials at temperatures approaching room temperature. Pushing this line of
  research further will be facilitated by new probing and driving technolog
 ies\, such as ultrafast control and detection of magnetic fields or tailor
 ing the spatial symmetries of laser fields to perform active symmetry brea
 king in solids. Ultimately\, this approach can provide new insights on the
  fundamental question of how order forms in complex quantum mechanical sys
 tems\, and unlock ultrafast on-demand control of new functionalities and p
 henomena ranging from quantum magnetism to topological superconductivity.
LOCATION:https://epfl.zoom.us/j/65729255099?pwd=UnVmaGlrZm12QzdFUWx0MnB0Yz
 IwQT09
STATUS:CONFIRMED
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