Pulse imaging and nonadiabatic control of solid-state artificial atoms

Journal Article · Tue Dec 01 00:00:00 EST 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.80.220506· OSTI ID:21294537

Bylander, Jonas ^[1]; Rudner, Mark S ^[2]; Shytov, Andrey V ^[3]; Valenzuela, Sergio O ^[4]; Berns, David M ^[1]; Berggren, Karl K ^[5]; Levitov, Leonid S ^[2]; Oliver, William D ^[1]

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1. Research Laboratory of Electronics, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States)
2. Department of Physics, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States)
3. Department of Physics, University of Utah, Salt Lake City, Utah 84112 (United States)
4. Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States)
5. MIT Lincoln Laboratory, 244 Wood Street, Lexington, Massachusetts 02420 (United States)

Transitions in an artificial atom, driven nonadiabatically through an energy-level avoided crossing, can be controlled by carefully engineering the driving protocol. We have driven a superconducting persistent-current qubit with a large-amplitude radio-frequency field. By applying a biharmonic wave form generated by a digital source, we demonstrate a mapping between the amplitude and phase of the harmonics produced at the source and those received by the device. This allows us to image the actual wave form at the device. This information is used to engineer a desired time dependence, as confirmed by the detailed comparison with a simulation.

• OSTI ID: 21294537
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 80, Issue 22; Other Information: DOI: 10.1103/PhysRevB.80.220506; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
ATOMS
COMPARATIVE EVALUATIONS
ENERGY LEVELS
HARMONICS
NIOBIUM
PULSE GENERATORS
QUANTUM COMPUTERS
QUBITS
RADIOWAVE RADIATION
SIMULATION
SOLIDS
SUPERCONDUCTING DEVICES
TIME DEPENDENCE
WAVE FORMS