William D. Oliver

Pulse calibration and non-adiabatic control of solid-state artificial atoms (2008)

Bylander, Jonas, Rudner, Mark S., Shytov, Andrey V., Valenzuela, Sergio O., Berns, David M., Berggren, Karl K., ...

Transitions in an artificial atom, driven non-adiabatically through an energy-level avoided crossing, can be controlled by carefully engineering the driving protocol. We have driven a superconducting...

Amplitude Spectroscopy of a Solid-State Artificial Atom (2008)

Berns, David M., Rudner, Mark S., Valenzuela, Sergio O., Berggren, Karl K., Oliver, William D., Levitov, Leonid S., ...

The energy-level structure of a quantum system plays a fundamental role in determining its behavior and manifests itself in a discrete absorption and emission spectrum. Conventionally, spectra are...

High-fidelity quantum operations on superconducting qubits in the presence of noise (2008)

Kerman, Andrew J., Oliver, William D.

We present a scheme for implementing quantum operations with superconducting qubits. Our approach uses a "coupler" qubit to mediate a controllable, secular interaction between "data" qubits, pulse...

Entanglement in 2DEG systems: Towards a detection loophole-free test of Bell's inequality (2007)

Xavier Maître, William D. Oliver, Yoshihisa Yamamoto

We make use of the intrinsic noiseless and lossless aspect of an electron source in a 2DEG system to implement a new test of Bell's inequality. The generated entanglement can be tested by...

Tomonaga-Luttinger Liquid Features in Ballistic Single-Walled Carbon Nanotubes: Conductance and Shot Noise (2006)

Kim, Na Young, Recher, Patrik, Oliver, William D., Yamamoto, Yoshihisa, Kong, Jing, Dai, Hongjie

We study the electrical transport properties of well-contacted ballistic single-walled carbon nanotubes in a three-terminal configuration at low temperatures. We observe signatures of strong...

Nonlinear resonant behavior of the dispersive readout scheme for a superconducting flux qubit (2006)

Lee, Janice C., Oliver, William D., Berggren, Karl K., Orlando, T. P.

A nonlinear resonant circuit comprising a SQUID magnetometer and a parallel capacitor is studied as a readout scheme for a persistent-current (PC) qubit. The flux state of the qubit is detected as a...

Electromagnetically induced transparency in superconducting quantum circuits : Effects of decoherence, tunneling and multi-level cross-talk (2006)

Dutton, Zachary, Oliver, William D., Orlando, T. P.

We explore theoretically electromagnetically-induced transparency (EIT) in a superconducting quantum circuit (SQC). The system is a persistent-current flux qubit biased in a $\Lambda$ configuration....

Mach-Zehnder Interferometry in a Strongly Driven Superconducting Qubit (2005)

Oliver, William D., Yu, Yang, Lee, Janice C., Berggren, Karl K., Levitov, Leonid S., Orlando, Terry P.

We demonstrate Mach-Zehnder-type interferometry in a superconducting flux qubit. The qubit is a tunable artificial atom, whose ground and excited states exhibit an avoided crossing. Strongly driving...

No approximate complex fermion coherent states (2005)

Tyc, Tomas, Hamilton, Brett, Sanders, Barry C., Oliver, William D.

Whereas boson coherent states with complex parametrization provide an elegant, and intuitive representation, there is no counterpart for fermions using complex parametrization. However, a complex...

Resonant Readout of a Persistent Current Qubit (2005)

Lee, Janice C., Oliver, William D., Orlando, Terry P., Berggren, Karl K.

We have implemented a resonant circuit that uses a SQUID as a flux-sensitive Josephson inductor for qubit readout. In contrast to the conventional switching current measurement that generates...

Electronic coherence theory (2003)

Bartlett, Stephen D., Sanders, Barry C., Oliver, William D., Yamamoto, Yoshihisa

We withdraw our paper as the factorizability of the correlation functions is unproven.

Energy Relaxation Time between Macroscopic Quantum Levels in a Superconducting Persistent Current Qubit (2003)

Yu, Yang, Nakada, D., Lee, Janice C., Singh, Bhuwan, Crankshaw, D. S., Orlando, T. P., ...

We measured the intrawell energy relaxation time \tau_{d} between macroscopic quantum levels in the double well potential of a Nb persistent-current qubit. Interwell population transitions were...

Electron Entanglement via a Quantum Dot (2001)

Oliver, William D., Yamaguchi, F., Yamamoto, Y.

This Letter presents a method of electron entanglement generation. The system under consideration is a single-level quantum dot with one input and two output leads. The leads are arranged such that...

Protection of pulp as related to restorative procedures. (1968)

Blum, Stanley S., Butterman, Alfred Claude., Cochrane, John M., Edmison, Robert H., ...

Written for the Faculty of Dentistry.