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SUMMARY:Characterizations of complex systems and untrusted devices for qua
 ntum simulations\, computing and networks
DTSTART:20181109T151500
DTSTAMP:20260510T211238Z
UID:7a68839fd0c5734e418f4c2197d907d009659222b2cbb3f77cefdc13
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Nicolas Sangouard\nQuantum technologies including quantu
 m simulation\, computing and networks are at the heart of many academic pr
 ojects and strategic developments of multinational companies. These effort
 s have already led to impressive experimental progress. Devices for quantu
 m randomness generation or quantum key distribution have been commercial
 ly available since 2004 and various companies are now proposing small to
  medium scale quantum computers for solving specific tasks. \nHow can one
  test these devices? How can one be assured of their proper functioning?
  Fully dismantling the device to investigate all of its components comes 
 at the price of voiding any manufacturer warranty. Furthermore the physic
 s of these devices can be complex\, so getting a complete and precise mo
 del of these devices to describe their behavior can be challenging. \nD
 uring this talk\, we will discuss how to interact with complex systems or 
 untrusted devices to characterize them. We will present concrete ideas to 
 prove the quantum nature of many-body systems without assumption on the d
 imension of the underlying Hilbert space or on the proper calibration of t
 he measurement devices. We will show how one can certify the proper functi
 oning of building blocks of quantum computers and networks independently o
 f the details of the actual implementation. \n \nAbout the research of t
 he speaker: https://www.physik.unibas.ch/personen/prof-sangouard-snsf.htm
 l\n 
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STATUS:CONFIRMED
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