Publications

Rescaling interactions for quantum control

G Bhole, T Tsunoda, PJ Leek, JA Jones
Phys. Rev. Applied 13, 034002 (2020), preprint at arXiv:1911.04806.

Cost function embedding and dataset encoding for machine learning with parameterized quantum circuits

S Cao, L Wossnig, B Vlastakis, PJ Leek, E Grant
Phys. Rev. A 101, 052309 (2020), preprint available at arXiv:1910.03902.

Modelling of TM modes in periodically-shorted cavities for circuit QED

PA Spring, S Sosnina, T Tsunoda, B Vlastakis, PJ Leek
Preprint available at arXiv:1909.02104.

Critical slowing down in the bistable regime of circuit quantum electrodynamics

P Brookes, G Tancredi, AD Patterson, J Rahamim, M Esposito, PJ Leek, E Ginossar, MH Szymanska
Preprint available at arXiv:1907.13592.

Calibration of the cross-resonance two-qubit gate between directly-coupled transmons

AD Patterson, J Rahamim, T Tsunoda, P Spring, S Jebari, K Ratter, M Mergenthaler, G Tancredi, B Vlastakis, M Esposito, PJ Leek
Phys. Rev. Applied 12, 064013 (2019), preprint at arXiv:1905.05670

Realization of a carbon-nanotube-based superconducting qubit

M Mergenthaler, A Nersisyan, A Patterson, M Esposito, A Baumgartner, C Schönenberger, GAD Briggs, EA Laird, PJ Leek
Preprint available at arXiv:1904.10132.

Strong coupling of microwave photons to antiferromagnetic fluctuations in an organic magnet

M Mergenthaler, J Liu, JJ Le Roy, N Ares, AL Thompson, L Bogani, F Luis, SJ Blundell, T Lancaster, A Ardavan, GAD Briggs, PJ Leek, EA Laird
Phys. Rev. Lett. 119, 147701 (2017), preprint at arXiv:1703.06202

Circuit quantum acoustodynamics with surface acoustic waves

R Manenti, AF Kockum, A Patterson, T Behrle, J Rahamim, G Tancredi, F Nori, PJ Leek
Nature Communications 8, 975 (2017), preprint at arXiv:1703.04495

Optimal control of two qubits via a single cavity drive in circuit quantum electrodynamics

JL Allen, R Kosut, J Joo, PJ Leek, E Ginossar
Phys. Rev. A 95, 042325 (2017), preprint at arXiv:1703.06077

Double-sided coaxial circuit QED with out-of-plane wiring

J Rahamim, T Behrle, MJ Peterer, A Patterson, P Spring, T Tsunoda, R Manenti, G Tancredi, PJ Leek
Appl. Phys. Lett. 110, 222602 (2017), preprint at arXiv:1703.05828

Simultaneous bistability of qubit and resonator in circuit quantum electrodynamics

TK Mavrogordatos, G Tancredi, M Elliott, MJ Peterer, A Patterson, J Rahamim, PJ Leek, E Ginossar, MH Szymanska
Phys. Rev. Lett. 118, 040402 (2017), preprint at arXiv:1611.10354

Quantum Acoustics with Surface Acoustic Waves

T Aref, P Delsing, MK Ekstroem, AF Kockum, MV Gustafsson, G Johansson, PJ Leek, EB Magnusson, R Manenti
Superconducting Devices in Quantum Optics, Springer (2016) [pp 217-244], also at arXiv:1506.01631

Surface Acoustic Wave Resonators in the Quantum Regime

R Manenti, MJ Peterer, A Nersisyan, EB Magnusson, A Patterson, PJ Leek
Phys. Rev. B 93, 041411(R) (2016), preprint at arXiv:1510.04965

Surface Acoustic Wave Devices on Bulk ZnO at Low Temperature

EB Magnusson, BH Williams, R Manenti, MS Nam, A Nersisyan, MJ Peterer, A Ardavan, PJ Leek
App. Phys. Lett. 106, 063509 (2015), preprint at arXiv:1411.5916

Coherence and Decay of Higher Energy Levels of a Superconducting Transmon Qubit

MJ Peterer, SJ Bader, X Jin, F Yan, A Kamal, TJ Gudmundsen, PJ Leek, TP Orlando, WD Oliver, S Gustavsson
Phys. Rev. Lett. 114, 010501 (2015), preprint at arXiv:1409.6031

Storing Quantum Information in Schrodinger’s Cats

PJ Leek
Science (Perspective) 342, 568 (2013)

Hybrid circuit QED with spin ensembles and carbon-nanotube-based superconducting qubits

Matthias Mergenthaler
DPhil Thesis (2018)
Co-supervised by EA Laird, GAD Briggs

High-spin impurities and surface acoustic waves in piezoelectric crystals for spin-lattice coupling

Einar B Magnusson
DPhil Thesis (2016)
Co-supervised by A Ardavan

Quantum Dot Admittance Probed at Microwave Frequencies with an On-Chip Resonator

T Frey, PJ Leek, M Beck, J Faist, A Wallraff, K Ensslin, T Ihn, M Buettiker
Physical Review B 86, 115303 (2012)

Dipole Coupling of a Double Quantum Dot to a Microwave Resonator

T Frey, PJ Leek, M Beck, A Blais, T Ihn, K Ensslin, A Wallraff
Physical Review Letters 108, 046807 (2012)

Characterization of a Microwave Frequency Resonator via a nearby Quantum Dot

T Frey, PJ Leek, M Beck, K Ensslin, A Wallraff, T Ihn
Applied Physics Letters 98, 262105 (2011)

Antibunching of Microwave-Frequency Photons Observed in Correlation Measurements using Linear Detectors

D Bozyigit, C Lang, L Steffen, JM Fink, M Baur, R Bianchetti, PJ Leek, S Filipp, MPD Silva, A Blais, A Wallraff
Nature Physics 7, 154-158 (2011)

Fabrication and Heating Rate Study of Microscopic Surface Electrode Ion Traps

N Daniilidis, S Narayanan, SA Moeller, R Clark, TE Lee, PJ Leek, A Wallraff, S Schulz, F Schmidt-Kaler, H Haeffner
New Journal of Physics 13,013032 (2011)

Quantum-To-Classical Transition in Cavity Quantum Electrodynamics

JM Fink, L Steffen, P Studer, LS Bishop, M Baur, R Bianchetti, D Bozyigit, C Lang, S Filipp, PJ Leek, A Wallraff
Physical Review Letters 105, 163601 (2010)

Cavity Quantum Electrodynamics with Separate Photon Storage and Qubit Readout Modes

PJ Leek, M Baur, JM Fink, R Bianchetti, L Steffen, S Filipp, A Wallraff
Physical Review Letters 104, 100504 (2010)

Dynamics of dispersive single-qubit readout in circuit quantum electrodynamics

R Bianchetti, S Filipp, M Baur, JM Fink, M Goppl, PJ Leek, L Steffen, A Blais, A Wallraff
Physical Review A 80, 043840 (2009)

Dressed Collective Qubit States and the Tavis-Cummings Model in Circuit QED

JM Fink, R Bianchetti, M Baur, M Goppl, L Steffen, S Filipp, PJ Leek, A Blais, A Wallraff
Physical Review Letters 103, 083601 (2009)

Measurement of Autler-Townes and Mollow Transitions in a Strongly Driven Superconducting Qubit

M Baur, S Filipp, R Bianchetti, JM Fink, M Goppl, L Steffen, PJ Leek, A Blais, A Wallraff
Physical Review Letters 102, 243602 (2009)

Two-Qubit State Tomography Using a Joint Dispersive Readout

S Filipp, P Maurer, PJ Leek, M Baur, R Bianchetti, JM Fink, M Goppl, L Steffen, JM Gambetta, A Blais, A Wallraff
Physical Review Letters 102, 200402 (2009)

Using sideband transitions for two-qubit operations in superconducting circuits

PJ Leek, S Filipp, P Maurer, M Baur, R Bianchetti, JM Fink, M Goppl, L Steffen, A Wallraff
Physical Review B 79, 180511(R) (2009)

Coplanar waveguide resonators for circuit quantum electrodynamics

M Goppl, A Fragner, M Baur, R Bianchetti, S Filipp, JM Fink, PJ Leek, G Puebla, L Steffen, A Wallraff
Journal of Applied Physics 104, 113904 (2008)

Resolving Vacuum Fluctuations in an Electrical Circuit by Measuring the Lamb Shift

A Fragner, M Goppl, JM Fink, M Baur, R Bianchetti, PJ Leek, A Blais, A Wallraff
Science 322, 1357 (2008)

Adiabatic charge pumping in carbon nanotube quantum dots

MR Buitelaar, V Kashcheyevs, PJ Leek, VI Talyanskii, CG Smith, D Anderson, GAC Jones, J Wei, DH Cobden
Physical Review Letters 101, 126803 (2008)

Climbing the Jaynes-Cummings ladder and observing its root n nonlinearity in a cavity QED system

JM Fink, M Goppl, M Baur, R Bianchetti, PJ Leek, A Blais, A Wallraff
Nature 454, 315 (2008)

Observation of Berry’s phase in a solid-state qubit

PJ Leek, JM Fink, A Blais, R Bianchetti, M Goppl, JM Gambetta, DI Schuster, L Frunzio, RJ Schoelkopf, A Wallraff
Science 318, 1889 (2007)

Charge pumping and current quantization in surface acoustic-wave-driven carbon nanotube devices

MR Buitelaar, PJ Leek, VI Talyanskii, CG Smith, D Anderson, GAC Jones, J Wei, DH Cobden
Semiconductor Science and Technology 21, S69 (2006)

Charge pumping in carbon nanotubes

PJ Leek, MR Buitelaar, VI Talyanskii, CG Smith, D Anderson, GAC Jones, J Wei, DH Cobden
Physical Review Letters 95, 256802 (2005)