Search Results - "Zumbühl, D M"

Machine learning enables completely automatic tuning of a quantum device faster than human experts by Moon, H., Lennon, D. T., Kirkpatrick, J., van Esbroeck, N. M., Camenzind, L. C., Yu, Liuqi, Vigneau, F., Zumbühl, D. M., Briggs, G. A. D., Osborne, M. A., Sejdinovic, D., Laird, E. A., Ares, N.

“…Variability is a problem for the scalability of semiconductor quantum devices. The parameter space is large, and the operating range is small. Our statistical…”
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Single, double, and triple quantum dots in Ge/Si nanowires by Froning, F. N. M., Rehmann, M. K., Ridderbos, J., Brauns, M., Zwanenburg, F. A., Li, A., Bakkers, E. P. A. M., Zumbühl, D. M., Braakman, F. R.

“…We report highly tunable control of holes in Ge/Si core/shell nanowires. We demonstrate the ability to create single quantum dots of various sizes, with low…”
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On-and-off chip cooling of a Coulomb blockade thermometer down to 2.8 mK by Palma, M., Scheller, C. P., Maradan, D., Feshchenko, A. V., Meschke, M., Zumbühl, D. M.

“…Cooling nanoelectronic devices below 10 mK is a great challenge since thermal conductivities become very small, thus creating a pronounced sensitivity to heat…”
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Evolution of the quantum Hall bulk spectrum into chiral edge states by Patlatiuk, T., Scheller, C. P., Hill, D., Tserkovnyak, Y., Barak, G., Yacoby, A., Pfeiffer, L. N., West, K. W., Zumbühl, D. M.

“…One of the most intriguing and fundamental properties of topological systems is the correspondence between the conducting edge states and the gapped bulk…”
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Efficiently measuring a quantum device using machine learning by Lennon, D. T., Moon, H., Camenzind, L. C., Yu, Liuqi, Zumbühl, D. M., Briggs, G. A .D., Osborne, M. A., Laird, E. A., Ares, N.

“…Scalable quantum technologies such as quantum computers will require very large numbers of quantum devices to be characterised and tuned. As the number of…”
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Strong spin-orbit interaction and g -factor renormalization of hole spins in Ge/Si nanowire quantum dots by Froning, F. N. M., Rančić, M. J., Hetényi, B., Bosco, S., Rehmann, M. K., Li, A., Bakkers, E. P. A. M., Zwanenburg, F. A., Loss, D., Zumbühl, D. M., Braakman, F. R.

“…The spin-orbit interaction lies at the heart of quantum computation with spin qubits, research on topologically nontrivial states, and various applications in…”
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Possible evidence for helical nuclear spin order in GaAs quantum wires by Scheller, C P, Liu, T-M, Barak, G, Yacoby, A, Pfeiffer, L N, West, K W, Zumbühl, D M

“…We present transport measurements of cleaved edge overgrowth GaAs quantum wires. The conductance of the first mode reaches 2e(2)/h at high temperatures T≳10 K,…”
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Quantum device fine-tuning using unsupervised embedding learning by van Esbroeck, N M, Lennon, D T, Moon, H, Nguyen, V, Vigneau, F, Camenzind, L C, Yu, L, Zumbühl, D M, Briggs, G A D, Sejdinovic, D, Ares, N

“…Quantum devices with a large number of gate electrodes allow for precise control of device parameters. This capability is hard to fully exploit due to the…”
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Cross-architecture tuning of silicon and SiGe-based quantum devices using machine learning by Severin, B., Lennon, D. T., Camenzind, L. C., Vigneau, F., Fedele, F., Jirovec, D., Ballabio, A., Chrastina, D., Isella, G., de Kruijf, M., Carballido, M. J., Svab, S., Kuhlmann, A. V., Geyer, S., Froning, F. N. M., Moon, H., Osborne, M. A., Sejdinovic, D., Katsaros, G., Zumbühl, D. M., Briggs, G. A. D., Ares, N.

“…The potential of Si and SiGe-based devices for the scaling of quantum circuits is tainted by device variability. Each device needs to be tuned to operation…”
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Edge-State Wave Functions from Momentum-Conserving Tunneling Spectroscopy by Patlatiuk, T., Scheller, C. P., Hill, D., Tserkovnyak, Y., Egues, J. C., Barak, G., Yacoby, A., Pfeiffer, L. N., West, K. W., Zumbühl, D. M.

“…We perform momentum-conserving tunneling spectroscopy using a GaAs cleaved-edge overgrowth quantum wire to investigate adjacent quantum Hall edge states. We…”
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Deep reinforcement learning for efficient measurement of quantum devices by Nguyen, V., Orbell, S. B., Lennon, D. T., Moon, H., Vigneau, F., Camenzind, L. C., Yu, L., Zumbühl, D. M., Briggs, G. A. D., Osborne, M. A., Sejdinovic, D., Ares, N.

“…Deep reinforcement learning is an emerging machine-learning approach that can teach a computer to learn from their actions and rewards similar to the way…”
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Electrical control of spin relaxation in a quantum dot by Amasha, S, Maclean, K, Radu, Iuliana P, Zumbühl, D M, Kastner, M A, Hanson, M P, Gossard, A C

“…We demonstrate electrical control of the spin relaxation time T1 between Zeeman-split spin states of a single electron in a lateral quantum dot. We find that…”
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Intrinsic Metastabilities in the Charge Configuration of a Double Quantum Dot by Biesinger, D E F, Scheller, C P, Braunecker, B, Zimmerman, J, Gossard, A C, Zumbühl, D M

“…We report a thermally activated metastability in a GaAs double quantum dot exhibiting real-time charge switching in diamond shaped regions of the charge…”
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Bridging the Reality Gap in Quantum Devices with Physics-Aware Machine Learning by Craig, D. L., Moon, H., Fedele, F., Lennon, D. T., van Straaten, B., Vigneau, F., Camenzind, L. C., Zumbühl, D. M., Briggs, G. A. D., Osborne, M. A., Sejdinovic, D., Ares, N.

“…The discrepancies between reality and simulation impede the optimization and scalability of solid-state quantum devices. Disorder induced by the unpredictable…”
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Cotunneling spectroscopy in few-electron quantum dots by ZUMBÜHL, D. M, MARCUS, C. M, HANSON, M. P, GOSSARD, A. C

“…Few-electron quantum dots are investigated in the regime of strong tunneling to the leads. Inelastic cotunneling is used to measure the two-electron…”
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Anisotropic etching of graphite and graphene in a remote hydrogen plasma by Hug, D., Zihlmann, S., Rehmann, M. K., Kalyoncu, Y. B., Camenzind, T. N., Marot, L., Watanabe, K., Taniguchi, T., Zumbühl, D. M.

“…We investigate the etching of a pure hydrogen plasma on graphite samples and graphene flakes on SiO 2 and hexagonal boron-nitride substrates. The pressure and…”
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Progress in Cooling Nanoelectronic Devices to Ultra-Low Temperatures by Jones, A. T., Scheller, C. P., Prance, J. R., Kalyoncu, Y. B., Zumbühl, D. M., Haley, R. P.

“…Here we review recent progress in cooling micro-/nanoelectronic devices significantly below 10 mK. A number of groups worldwide are working to produce…”
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Surface-gated quantum Hall effect in an InAs heterostructure by Gelfand, Ian J., Amasha, S., Zumbühl, D. M., Kastner, M. A., Kadow, C., Gossard, A. C.

“…We demonstrate low leakage surface gating of an indium arsenide heterostructure with the two-dimensional electron gas close to the surface. Gating is made…”
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GaAs Quantum Dot Thermometry Using Direct Transport and Charge Sensing by Maradan, D., Casparis, L., Liu, T.-M., Biesinger, D. E. F., Scheller, C. P., Zumbühl, D. M., Zimmerman, J. D., Gossard, A. C.

“…We present measurements of the electron temperature using gate-defined quantum dots formed in a GaAs 2D electron gas in both direct transport and charge…”
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Gate-controlled spin-orbit quantum interference effects in lateral transport by Miller, J B, Zumbühl, D M, Marcus, C M, Lyanda-Geller, Y B, Goldhaber-Gordon, D, Campman, K, Gossard, A C

“…In situ control of spin-orbit coupling in coherent transport using a clean GaAs/AlGaAs two-dimensional electron gas is realized, leading to a gate-tunable…”
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