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UID:UW-Physics-Event-4160
DTSTART:20160602T150000Z
DURATION:PT1H0M0S
DTSTAMP:20260419T080231Z
LAST-MODIFIED:20160518T121956Z
LOCATION:5310 Chamberlin 
SUMMARY:Prototyping Extensible Quantum Computing Architectures\, R. G.
  Herb Condensed Matter Seminar\, Prof. Matteo Mariantoni\, U. Waterloo
  and the Institute for Quantum Computing
DESCRIPTION:<br>
\nQuantum computing architectures with ten or more qu
 antum bits (qubits) have been implemented using trapped ions and super
 conducting devices. The next milestone in the quest for a quantum comp
 uter is the realization of quantum error correction codes. Such codes 
 will require a very large number of qubits that must be controlled and
  measured by means of classical electronics. One architectural aspect 
 requiring immediate attention is the realization of a suitable interco
 nnect between the quantum and classical hardware. In this talk\, I wil
 l introduce the quantum socket\, a three-dimensional wiring method for
  qubits with superior performance as compared to two-dimensional metho
 ds based on wire bonding. The quantum socket is based on spring-mounte
 d micro wires – the three-dimensional wires – that connect electri
 cally to a micro-fabricated chip by pushing directly on it. The wires 
 have a coaxial geometry and operate well over a frequency range from D
 C to 10 GHz. I will present a detailed characterization of the quantum
  socket\, with emphasis on generalized time-domain reflectometry\, a n
 ew signal integrity tool developed in my lab. As a proof of concept fo
 r quantum computing applications\, I will show a series of experiments
  where a quantum socket was used to measure superconducting resonators
  at a temperature of ~10 mK. I will also show preliminary results wher
 e a socket was used to characterize resonators fabricated from molecul
 ar beam epitaxy aluminum films on gallium arsenide substrates. In conc
 lusion\, I will give an outlook demonstrating how the quantum socket c
 an be used to wire a quantum processor with a 10 × 10 qubit lattice a
 nd I will outline our present work toward the implementation of such a
  lattice.
URL:https://www.physics.wisc.edu/events/?id=4160
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