Names of Post Doctorates

This project supplies support for an additional graduate student, Mr. David Schuster, on experimental investigations on quantum coherence, entanglement, and quantum computation in a solid-state, electronic realization of quantum bits based on superconducting single-electron devices, namely the single Cooper-pair box. Mr. Schuster has developed a process for fabrication of Al/AlOx/Al tunnel qubits with integrated transmission line resonators, and used these devices for cavity-QED manipulations and readout of qubits. This work has led to the first strong coupling of a solid-state qubit to a single photon, the first high-fidelity non-demolition readout of superconducting qubits, and the first high-visibility quantum control of superconducting qubits. (a) Papers published in peer-reviewed journals (N/A for none) 1) “Cavity Quantum Electrodynamics for Superconducting Electrical Circuits: an Architecture for Quantum Computation,” Alexandre Blais, Ren-Shou Huang, Andreas Wallraff, S.M. Girvin, and R.J. Schoelkopf, Phys. Rev. A 69, 062320 (2004). 2) “Coherent Coupling of a Single Photon to a Superconducting Qubit Using Circuit Quantum Electrodynamics,” A. Wallraff, D. Schuster, Alexandre Blais, L. Frunzio, Ren-Shou Huang, J. Majer, S. Kumar, S.M. Girvin, and R.J. Schoelkopf, Nature 431, 162 (2004). 3) “AC Stark Shift and Dephasing in a Superconducting Qubit Strongly Coupled to a Cavity Field,” D.I. Schuster, A. Wallraff, Alexandre Blais, L. Frunzio, Ren-Shou Huang, J. Majer, S.M. Girvin, and R.J. Schoelkopf, Phys. Rev. Lett. 94, 123602 (2005). 4) “Fabrication and Characterization of Superconducting Circuit QED Devices for Quantum Computation,” L. Frunzio, A. Wallraff, D. Schuster, J. Majer, and R.J. Schoelkopf, IEEE Trans. on Applied Superconductivity 15, 860 (2005). 5) “Approaching Unit Visibility for Control of a Superconducting Qubit with Dispersive Readout,” A. Wallraff, D.I. Schuster, A. Blais, L. Frunzio, J. Majer, M.H. Devoret, S.M. Girvin, and R.J. Schoelkopf, Phys. Rev. Lett. 95, 060501 (2005). List of papers submitted or published that acknowledge ARO support during this reporting period. List the papers, including journal references, in the following categories: (b) Papers published in non-peer-reviewed journals or in conference proceedings (N/A for none) 5.00 Number of Papers published in peer-reviewed journals: Number of Papers published in non peer-reviewed journals: (c) Papers presented at meetings, but not published in conference proceedings (N/A for none) 0.00 Number of Papers not Published: (d) Manuscripts 0.00 Number of Manuscripts: 0.00 Number of Inventions: