Publications

Superconducting Qubits


I. Siddiqi. "Superconducting qubits: poised for computing?" Supercond. Sci. Technol. 24, 091002 (2011). Link
R. Vijay, D. H. Slichter, and I. Siddiqi. "Observation of Quantum Jumps in a Superconducting Artificial Atom." Phys. Rev. Lett. 106, 110502 (2011). Link. IOP PhysicsWorld news on quantum jumps; PhysOrg news on quantum jumps.
I. Siddiqi and J. Clarke. "Entangled Solid-State Circuits." Science 313, 1400 (2006). Link
I. Siddiqi, R. Vijay, M. Metcalfe, E. Boaknin, L. Frunzio, R.J. Schoelkopf, and M.H. Devoret. "Dispersive measurements of superconducting qubit coherence with a fast latching readout." Phys. Rev. B 73, 054510 (2006). Link

Novel Josephson Devices


E. M. Levenson-Falk, R. Vijay, I. Siddiqi. "Nonlinear microwave response of aluminum weak-link Josephson oscillators." Appl. Phys. Lett. 98, 123115 (2011). Link
K. W. Murch, R. Vijay, I. Barth, O. Naaman, J. Aumentado, L. Friedland, and I. Siddiqi. "Quantum Fluctuations in the Chirped Pendulum." Nature Physics 7, 105 (2011). Link. Nature Physics news and views feature on chirped resonator
R. Vijay, E.M. Levenson-Falk, D.H. Slichter, and I. Siddiqi. "Approaching ideal weak link behavior with three dimensional aluminum nanobridges." Appl. Phys. Lett. 96, 223112 (2010). Link
R. Vijay, J.D. Sau, Marvin L. Cohen, I. Siddiqi. "Optimizing Anharmonicity in Nanoscale Weak Link Josephson Junction Oscillators." Phys. Rev. Lett. 103, 087003 (2009). Link
Ç. Girit, V. Bouchiat, O. Naaman, Y. Zhang, M.F. Crommie, A. Zettl, and I. Siddiqi. "Tunable Graphene dc Superconducting Quantum Interference Device." Nano Lett. 9, 198 (2009). Link
O. Naaman, J. Aumentado, L. Friedland, J.S. Wurtele, and I. Siddiqi. "Phase-locking transition in a chirped superconducting Josephson resonator." Phys. Rev. Lett. 101, 117005 (2008). Link

Ultra Low Noise Amplifiers


M. Hatridge, R. Vijay, D.H. Slichter, J. Clarke, and I. Siddiqi. "Dispersive magnetometry with a quantum limited SQUID parametric amplifier." Phys. Rev. B 83, 134501 (2011). Link. APS Physics viewpoint on dispersive magnetometer
R. Vijay, M.H. Devoret., I. Siddiqi. "Invited Review Article: The Josephson bifurcation amplifier." Rev. Sci. Instrum. 80, 111101 (2009). Link
I. Siddiqi, R. Vijay, F. Pierre, C.M. Wilson, L. Frunzio, M. Metcalfe, C. Rigetti, and M.H. Devoret. "The Josephson Bifurcation Amplifier for Quantum Measurements." in Quantum Computation in Solid State Systems, B. Ruggiero, P. Delsing, C. Granata, Y. Pashkin, and P. Silvertrini (eds.). Springer, 2006.
I. Siddiqi, R. Vijay, F. Pierre, C.M. Wilson, L. Frunzio, M. Metcalfe, C. Rigetti, R.J. Schoelkopf, M. H. Devoret, D. Vion, and D. Esteve. "Direct Observation of Dynamical Bifurcation between Two Driven Oscillation States of a Josephson Junction." Phys. Rev. Lett. 94, 027005 (2005). Link
I. Siddiqi, R. Vijay, F. Pierre, C.M. Wilson, M. Metcalfe, C. Rigetti, L. Frunzio, and M.H. Devoret. "RF-Driven Josephson Bifurcation Amplifier for Quantum Measurement." Phys. Rev. Lett. 93, 207002 (2004). Link

Cryogenic Microwave Technology


S. Weber, K.W. Murch, D.H. Slichter, R. Vijay, I. Siddiqi. "Low loss microwave resonators using single crystal Si capacitors." Appl. Phys. Lett. 98, 172510 (2011). Link
D.H. Slichter, O. Naaman, and I. Siddiqi. "Millikelvin thermal and electrical performance of lossy transmission line filters." Appl. Phys. Lett. 94, 192508 (2009). Link