University of Wisconsin–Madison

Recent Publications

Signatures of atomic-scale structure in the energy dispersion and coherence of a Si quantum-dot qubit,” J. C. Abadillo-Uriel, B. Thorgrimsson, Dohun Kim, L. W. Smith, C. B. Simmons, D. R. Ward, R. H. Foote, J. Corrigan, D. E. Savage, M. G. Lagally, M. J. Calderon, S. N. Coppersmith, M. A. Eriksson, and Mark Friesen, Phys. Rev. B 98, 165438 (2018) [arXiv | Journal]
The critical role of substrate disorder for valley splitting in Si quantum wells,” Samuel F. Neyens, Ryan H. Foote, Brandur Thorgrimsson, T. J. Knapp, Thomas McJunkin, L. M. K. Vandersypen, Payam Amin, Nicole K. Thomas, James S. Clarke, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, and M. A. Eriksson, preprint arXiv:1804.01914, Applied Physics Letters 12, 243107 (2018) [arXiv | PDF]
Nuclear magnetic resonance probe system,” MS Larsen, HC Abbink, TG Walker, and MD Bulatowicz, US Patent 9,970,999, 1 (2018) [GScholar]
Theory of long range interactions for Rydberg states attached to hyperfine-split cores,” F. Robicheaux, D. W. Booth, and M. Saffman, Phys. Rev. A 97, 022508 (2018) [PDF]
Measurement of a Superconducting Qubit with a Microwave Photon Counter,” A. Opremcak, I. V. Pechenezhskiy, C. Howington, B. G. Christensen, M. A. Beck, E. Leonard Jr., J. Suttle, C. Wilen, K. Nesterov, G. J. Ribeill, T. Thorbeck,1, F. Schlenker, M. G. Vavilov, B. L. T. Plourde, and R. McDermott, Science, 6408 (2018) [arXiv | Journal | PDF]
Valley dependent anisotropic spin splitting in silicon quantum dots,” Rifat Ferdous, Erika Kawakami, Pasquale Scarlino, Michał P. Nowak, D. R. Ward, D. E. Savage, M. G. Lagally, S. N. Coppersmith, Mark Friesen, Mark A. Eriksson, Lieven M. K. Vandersypen, Rajib Rahman, preprint arXiv:1705.01468, npj Quantum Information 4, 26 (2018) [arXiv | PDF]
Synchronous Spin Exchange Optically Pumped NMR Gyro,” S Sorensen, D Thrasher, J Weber, A Korver, and T Walker, APS Meeting Abstracts (2018) [GScholar]
Dynamics of interacting fermions under spin-orbit coupling in an optical lattice clock,” S.L. Bromley, S. Kolkowitz, T. Bothwell, D. Kedar, A. Safavi-Naini, M.L. Wall, C. Saloman, A.M. Rey, and J. Ye,  Nature Physics 14, 399-404 (2018)
A programmable two-qubit quantum processor in silicon,” T. F. Watson, S. G. J. Philips, E. Kawakami, D. R. Ward, P. Scarlino, M. Veldhorst, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, L. M. K. Vandersypen, preprint arXiv:1708.04214, Nature 555, 633-637 (2018) [arXiv | PDF]
Reducing the sensitivity of Rydberg atoms to dc electric fields using two-frequency ac field dressing,” D. W. Booth, J. Isaacs, and M. Saffman, Phys. Rev. A 97, 112515 (2018) [PDF]
Quantum–Classical Interface Based on Single Flux Quantum Digital Logic,” R. McDermott, M. G. Vavilov, B. L. T. Plourde, F. K. Wilhelm, P. J. Liebermann, O. A. Mukhanov, and T. A. Ohki, Quantum Sci. Technol. 3, 024004 (2018) [arXiv | Journal | PDF]
Atomic clock system,” MS Larsen, and TG Walker, US Patent App. 15/722,595 (2018) [GScholar]
Measurement-free implementations of small-scale surface codes for quantum dot qubits,” H. Ekmel Ercan, Joydip Ghosh, Daniel Crow, Vickram N. Premakumar, Robert Joynt, Mark Friesen, and S. N. Coppersmith, preprint arXiv:1708.08683, Physical Review A 97, 012318 (2018) [arXiv | PDF]
Electronic Transport in Hydrogen-Terminated Si(001) Nanomembranes,” W. Peng, M. Zamiri, Shelley A. Scott, F. Cavallo, J. J. Endres, I. Knezevic, M. A. Eriksson, and M. G. Lagally, Phys. Rev. Applied 9, 024037 (2018) [Journal]
Optically polarized He3,” TR Gentile, PJ Nacher, B Saam, and TG Walker, Reviews of modern physics 89 (4), 045004, 8 (2017) [GScholar]
Extending the coherence of a quantum dot hybrid qubit,” Brandur Thorgrimsson, Dohun Kim, Yuan-Chi Yang, L. W. Smith, C. B. Simmons, Daniel R. Ward, Ryan H. Foote, J. Corrigan, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, preprint arXiv:1611.04945, npj Quantum Information 3, 32 (2017) [arXiv | PDF]
Silicon Nanomembranes with Hybrid Crystal Orientations and Strain States,” Shelley A. Scott, Christoph Deneke, D. M. Paskiewicz, Hyuk Ju Ryu, Angelo Malachias, Stefan Baunack, Oliver G. Schmidt, D. E. Savage, M. A. Eriksson, and M. G. Lagally, ACS Appl. Mat. Int. 9, 42372 (2017) [Journal]
Parallel low-loss measurement of multiple atomic qubits,” M. Kwon, M. F. Ebert, T. G. Walker, and M. Saffman, Phys. Rev. Lett. 119, 180504 (2017) [PDF]
Dressed photon-orbital states in a quantum dot: Inter-valley spin resonance,” P. Scarlino, E. Kawakami, T. Jullien, D. R. Ward, D. E. Savage, M. G. Lagally, Mark Friesen, S. N. Coppersmith, M. A. Eriksson, and L. M. K. Vandersypen, Phys. Rev. B 95, 165429 (2017) [Journal]
 Superconductivity in Empty Bands and Multiple Order Parameter Chirality  R. Joynt and Wen-Chin Wu, arXiv: 1705.05051, Nature Scientific Reports 7, 12968 (2017)    [Journal]
Effects of charge noise on a pulse-gated singlet-triplet S-T- qubit,” Zhenyi Qi, X. Wu, D. R. Ward, J. R. Prance, Dohun Kim, John King Gamble, R. T. Mohr, Zhan Shi, D. E. Savage, M. G. Lagally, M. A. Eriksson, Mark Friesen, S. N. Coppersmith, M. G. Vavilov, preprint arXiv:1701.06971, Physical Review B 96, 115305 (2017) [arXiv | PDF]
High-fidelity Rydberg quantum gate via a two-atom dark state,” D. Petrosyan, F. Motzoi, M. Saffman, and K. Mølmer, Phys. Rev. A 96, 042306 (2017) [PDF]
Achieving high-fidelity single-qubit gates in a strongly driven silicon-quantum-dot hybrid qubit,” Yuan-Chi Yang, S. N. Coppersmith, and Mark Friesen, Phys. Rev. A 95, 162321 (2017) [Journal]
Precision Measurements with a Dual Species NMR Oscillator,” S Sorensen, D Thrasher, J Weber, A Korver, and T Walker, APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts (2017) [GScholar]
Pulse sequences for suppressing leakage in single-qubit gate operations,” Joydip Ghosh, S. N. Coppersmith, and Mark Friesen, preprint arXiv:1612.00568, Physical Review B 95, 241307 (2017) [arXiv | PDF]
Reverse Isolation and Backaction of the SLUG Microwave Amplifier,” T. Thorbeck, S. Zhu, E. Leonard Jr., R. Barends, J. Kelly, John M. Martinis, R. McDermott, Phys. Rev. Applied 8, 054007 (2017) [arXiv | Journal | PDF]
Coherent Magnetic Response at Optical Frequencies Using Atomic Transitions,” N. R. Brewer, Z. N. Buckholtz, Z. J. Simmons, E. A. Mueller, and D. D. Yavuz Phys. Rev. X 7, 011005 (2017) [pdf] [PDF]
Spin-orbit coupled fermions in an optical lattice clock,” S. Kolkowitz, S.L. Bromley, T. Bothwell, M.L. Wall, G.E. Marti, A.P. Koller, X. Zhang, A.M. Rey, and J. Ye,  Nature 542, 66-70 (2017)
Synchronous Spin Exchange Comagnetometry,” J Weber, D Thrasher, S Sorensen, A Korver, and T Walker, APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts (2017) [GScholar]
A decoherence-free subspace in a charge quadrupole qubit,” Mark Friesen, Joydip Ghosh, M. A. Eriksson, and S. N. Coppersmith, Nature Communications 8, 15923 (2017) [PDF]
Quantum computing with neutral atoms,” D. S. Weiss and M. Saffman, Phys. Today 70, 44 (2017) [PDF]
Fetal Magnetocardiography with an Atomic Magnetometer Array,” M Bulatowicz, Z DeLand, L Zhivun, A Hryciuk, R Wakai, and T Walker, APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts (2017) [GScholar]
Microwave-to-optical frequency conversion using a cesium atom coupled to a superconducting resonator,” B. T. Gard, K. Jacobs, R. McDermott, and M. Saffman, Phys. Rev. A 96, 013833 (2017). [PDF]
Nondestructive fluorescence detection of hyperfine states of Rb using an EMCCD camera,” M Kwon, M Ebert, C Young, T Walker, and M Saffman, APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts, 1 (2017) [GScholar]