000884098 001__ 884098
000884098 005__ 20210130005830.0
000884098 037__ $$aFZJ-2020-03093
000884098 041__ $$aEnglish
000884098 1001_ $$0P:(DE-Juel1)143759$$aDiVincenzo, David$$b0$$eCorresponding author$$ufzj
000884098 1112_ $$aPhysics Colloquium$$wNorway
000884098 245__ $$aCurrent Challenges for Quantum Computing$$f2020-09-04 - 
000884098 260__ $$c2020
000884098 3367_ $$033$$2EndNote$$aConference Paper
000884098 3367_ $$2DataCite$$aOther
000884098 3367_ $$2BibTeX$$aINPROCEEDINGS
000884098 3367_ $$2ORCID$$aLECTURE_SPEECH
000884098 3367_ $$0PUB:(DE-HGF)31$$2PUB:(DE-HGF)$$aTalk (non-conference)$$btalk$$mtalk$$s1599649795_20791$$xInvited
000884098 3367_ $$2DINI$$aOther
000884098 502__ $$cUniversity Norwegian of Science and Technology
000884098 520__ $$aWe have known for over twenty years that quantum computers would have unique powers for solving certain classes of computational problems. Throughout these twenty years, workers have striven to identify a physical setting in which high-quality qubits can be created and employed in a quantum computing system. Very promising devices have been identified in several different areas of low-temperature electronics, namely in superconductor and in single-electron semiconductor structures (e.g., quantum dots).Rudimentary efforts at scale-up are presently underway; even for modules of 10 qubits, the complexity of the classical electronic control system becomes one of the main barriers to further progress. The specifications of this control system are now well defined, and are daunting. In this talk I will touch on two aspects of this control problem. First, I indicate the problems with unintended couplings between qubits in multi-qubit structures. For superconducting qubit systems, I show our current methodology for accurately characterizing these couplings. Second, I suggest solutions to the problem of miniaturizing the microwave circulator, using the quantum Hall effect; current circulators take up so much space in existing experiments that they limit the physical scale-up of the systems.
000884098 536__ $$0G:(DE-HGF)POF3-144$$a144 - Controlling Collective States (POF3-144)$$cPOF3-144$$fPOF III$$x0
000884098 909CO $$ooai:juser.fz-juelich.de:884098$$pVDB
000884098 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)143759$$aForschungszentrum Jülich$$b0$$kFZJ
000884098 9131_ $$0G:(DE-HGF)POF3-144$$1G:(DE-HGF)POF3-140$$2G:(DE-HGF)POF3-100$$3G:(DE-HGF)POF3$$4G:(DE-HGF)POF$$aDE-HGF$$bEnergie$$lFuture Information Technology - Fundamentals, Novel Concepts and Energy Efficiency (FIT)$$vControlling Collective States$$x0
000884098 9141_ $$y2020
000884098 920__ $$lyes
000884098 9201_ $$0I:(DE-Juel1)PGI-2-20110106$$kPGI-2$$lTheoretische Nanoelektronik$$x0
000884098 980__ $$atalk
000884098 980__ $$aVDB
000884098 980__ $$aI:(DE-Juel1)PGI-2-20110106
000884098 980__ $$aUNRESTRICTED