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SUMMARY:Quantum acoustics with superconducting qubits
DTSTART:20180409T140000
DTEND:20180409T150000
DTSTAMP:20260407T115053Z
UID:cf52f38dda33e4adb86c267ec805cc16b57fe75e6a472c236383bb58
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Yiwen Chu\, Yale University\nAbstract: The ability to eng
 ineer and manipulate different types of quantum mechanical objects allows 
 us to take advantage of their unique properties and create useful hybrid t
 echnologies. Thus far\, complex quantum states and exquisite quantum contr
 ol have been demonstrated in systems ranging from trapped ions to supercon
 ducting resonators. Recently\, there have been many efforts to extend thes
 e demonstrations to the motion of complex\, macroscopic objects. These mec
 hanical objects have important applications as quantum memories or transdu
 cers for measuring and connecting different types of quantum systems. In p
 articular\, there have been a few experiments that couple motion to nonlin
 ear quantum objects such as superconducting qubits. This opens up the poss
 ibility of creating\, storing\, and manipulating non-Gaussian quantum stat
 es in mechanical degrees of freedom. However\, before sophisticated quantu
 m control of mechanical motion can be achieved\, we must realize systems w
 ith long coherence times while maintaining a sufficient interaction streng
 th. These systems should be implemented in a simple and robust manner that
  allows for increasing complexity and scalability in the future. \n\nIn t
 his talk\, I will describe our recent experiments demonstrating a high fre
 quency bulk acoustic wave resonator that is strongly coupled to a supercon
 ducting qubit using piezoelectric transduction. Our device requires only s
 imple fabrication methods\, extends coherence times to many microseconds\,
  and provides controllable access to a multitude of phonon modes. We use t
 his device to demonstrate basic quantum operations on the coupled qubit-ph
 onon system. I will also describe some of the exciting future prospects fo
 r this direction of research\, including applications in hybrid quantum te
 chnologies and studies of fundamental science.
LOCATION:CH G1 495 https://plan.epfl.ch/?room==CH%20G1%20495
STATUS:CONFIRMED
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