Publications

Recent Developments


Resonantly phase-matched Josephson junction traveling wave parametric amplifier
Kevin O'Brien, Chris Macklin, Irfan Siddiqi, Xiang Zhang. 9 Jun 2014 arXiv
Observation of Measurement-Induced Entanglement and Quantum Trajectories of Remote Superconducting Qubits
PRL Editors' Suggestion
N. Roch, M. E. Schwartz, F. Motzoi, C. Macklin, R. Vijay, A. W. Eddins, A. N. Korotkov, K. B. Whaley, M. Sarovar, and I. Siddiqi. Phys. Rev. Lett. 112, 170501 (2014). PRL | arXiv
PRL News and Commentary: Remote Controlled Entanglement
Single-Quasiparticle Trapping in Aluminum Nanobridge Josephson Junctions
E. M. Levenson-Falk, F. Kos, R. Vijay, L. Glazman, I. Siddiqi. Phys. Rev. Lett. 112, 047002 (2014). PRL | arXiv
Observing single quantum trajectories of a superconducting qubit
K. W. Murch, S. J. Weber, C. Macklin, I. Siddiqi. Nature 502, 211 (2013). Nature | arXiv
Reduction of the radiative decay of atomic coherence in squeezed vacuum
K. W. Murch, S. J. Weber, K. M. Beck, E. Ginossar, I. Siddiqi. Nature 499, 62 (2013). Nature | arXiv

Superconducting Qubits


Papers:


Quantum state sensitivity of an autoresonant superconducting circuit
K. W. Murch, E. Ginossar, S. J. Weber, R. Vijay, S.M. Girvin, I. Siddiqi. Phys. Rev. B 86, 220503 (2012). PRB | arXiv
Cavity-assisted quantum bath engineering
K. W. Murch, U. Vool, D. Zhou, S. J. Weber, S. M. Girvin, I. Siddiqi. Phys. Rev. Lett. 109, 183602 (2012). PRL | arXiv
Measurement-Induced Qubit State Mixing in Circuit QED from Up-Converted Dephasing Noise
D. H. Slichter, R. Vijay, S. J. Weber, S. Boutin, M. Boissonneault, J. M. Gambetta, A. Blais, I. Siddiqi. Phys. Rev. Lett. 109, 153601 (2012). PRL | arXiv
Stabilizing Rabi oscillations in a superconducting qubit using quantum feedback
R. Vijay, C. Macklin, D. H. Slichter, S. J. Weber, K. W. Murch, R. Naik, A. N. Korotkov, I. Siddiqi. Nature 490, 77-80 (2012) Nature | arXiv
Nature news and views feature on quantum feedback
Heralded state preparation in a superconducting qubit
J. E. Johnson, C. Macklin, D. H. Slichter, R. Vijay, E. B. Weingarten, John Clarke, I. Siddiqi. Phys. Rev. Lett. 109, 050506 (2012). PRL | arXiv
1/f noise of Josephson-junction-embedded microwave resonators at single photon energies and millikelvin temperatures
K. W. Murch, S. J. Weber, E. M. Levenson-Falk, R. Vijay, and I. Siddiqi. Appl. Phys. Lett. 100, 142601 (2012). APL | arXiv
Dispersive readout of a flux qubit at the single-photon level
J. E. Johnson, E. M. Hoskinson, C. Macklin, D. H. Slichter, I. Siddiqi, and J. Clarke. Phys. Rev. B 84, 220503 (2011). PRB | arXiv
Superconducting qubits: poised for computing?
I. Siddiqi. Supercond. Sci. Technol. 24, 091002 (2011). Link
Observation of Quantum Jumps in a Superconducting Artificial Atom
R. Vijay, D. H. Slichter, and I. Siddiqi. Phys. Rev. Lett. 106, 110502 (2011). PRL | arXiv.
IOP PhysicsWorld news on quantum jumps; PhysOrg news on quantum jumps.
Entangled Solid-State Circuits
I. Siddiqi and J. Clarke. Science 313, 1400 (2006). Link
Dispersive measurements of superconducting qubit coherence with a fast latching readout
I. Siddiqi, R. Vijay, M. Metcalfe, E. Boaknin, L. Frunzio, R.J. Schoelkopf, and M.H. Devoret. Phys. Rev. B 73, 054510 (2006). PRB | arXiv

Theses:


Development of a Silicon Semiconductor Quantum Dot Qubit with Dispersive Microwave Readout
Dissertation submitted by E. T. Henry, Fall 2013. pdf
Quantum Jumps and Measurement Backaction in a Superconducting Qubit
Dissertation submitted by D. H. Slichter, Fall 2011. pdf (screen resolution) | pdf (print resolution) | errata (July 2012) | color hardcover | color paperback | B&W paperback

Ultra Low Noise Amplifiers and Magnetometry


Papers:


A dispersive nanoSQUID magnetometer for ultra-low noise, high bandwidth flux detection
E. M. Levenson-Falk, R. Vijay, N. Antler, I. Siddiqi. Supercond. Sci. Technol. 26, 055015 (2013). SST | arXiv
Parametric amplification in Josephson junction embedded transmission lines
O. Yaakobi, L. Friedland, C. Macklin, I. Siddiqi. Phys. Rev. B 87, 144301 (2013). PRB
In-plane magnetic field tolerance of a dispersive aluminum nanobridge SQUID magnetometer
N. Antler, E.M. Levenson-Falk, R. Naik, Y.-D. Sun, A. Narla, R. Vijay, I. Siddiqi. Appl. Phys. Lett. 102, 232602 (2013). APL | arXiv
Dispersive magnetometry with a quantum limited SQUID parametric amplifier
M. Hatridge, R. Vijay, D.H. Slichter, J. Clarke, and I. Siddiqi. Phys. Rev. B 83, 134501 (2011). PRB | arXiv
APS Physics viewpoint on dispersive magnetometer
Invited Review Article: The Josephson bifurcation amplifier
R. Vijay, M.H. Devoret, I. Siddiqi. Rev. Sci. Instrum. 80, 111101 (2009). Link
The Josephson Bifurcation Amplifier for Quantum Measurements
I. Siddiqi, R. Vijay, F. Pierre, C.M. Wilson, L. Frunzio, M. Metcalfe, C. Rigetti, and M.H. Devoret. in Quantum Computation in Solid State Systems, B. Ruggiero, P. Delsing, C. Granata, Y. Pashkin, and P. Silvertrini (eds.). Springer, 2006.
Direct Observation of Dynamical Bifurcation between Two Driven Oscillation States of a Josephson Junction
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. Phys. Rev. Lett. 94, 027005 (2005). PRL | arXiv
RF-Driven Josephson Bifurcation Amplifier for Quantum Measurement
I. Siddiqi, R. Vijay, F. Pierre, C.M. Wilson, M. Metcalfe, C. Rigetti, L. Frunzio, and M.H. Devoret. Phys. Rev. Lett. 93, 207002 (2004). PRL | arXiv

Novel Josephson Devices


Papers:


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

Theses:


Static and Microwave Transport Properties of Aluminum Nanobridge Josephson Junctions
Dissertation submitted by E. M. Levenson-Falk, Fall 2013. pdf (screen resolution) | pdf (print resolution) | color hardcover

Cryogenic Microwave Technology


Papers:


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