Search Results - "Hanson, M. P"

Coherent Manipulation of Coupled Electron Spins in Semiconductor Quantum Dots by Petta, J. R, Johnson, A. C, Taylor, J. M, Laird, E. A, Yacoby, A, Lukin, M. D, Marcus, C. M, Hanson, M. P, Gossard, A. C

“…We demonstrated coherent control of a quantum two-level system based on two-electron spin states in a double quantum dot, allowing state preparation, coherent…”
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Scaling of dynamical decoupling for spin qubits by Medford, J, Cywiński, Ł, Barthel, C, Marcus, C M, Hanson, M P, Gossard, A C

“…We investigate the scaling of coherence time T(2) with the number of π pulses n(π) in a singlet-triplet spin qubit using Carr-Purcell-Meiboom-Gill (CPMG) and…”
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Interlaced dynamical decoupling and coherent operation of a singlet-triplet qubit by Barthel, C, Medford, J, Marcus, C M, Hanson, M P, Gossard, A C

“…We experimentally demonstrate coherence recovery of singlet-triplet superpositions by interlacing qubit rotations between Carr-Purcell (CP) echo sequences. We…”
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Suppressing Spin Qubit Dephasing by Nuclear State Preparation by Reilly, D.J, Taylor, J.M, Petta, J.R, Marcus, C.M, Hanson, M.P, Gossard, A.C

“…Coherent spin states in semiconductor quantum dots offer promise as electrically controllable quantum bits (qubits) with scalable fabrication. For few-electron…”
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Manipulation of a single charge in a double quantum dot by PETTA, J. R, JOHNSON, A. C, MARCUS, C. M, HANSON, M. P, GOSSARD, A. C

“…We manipulate a single electron in a fully tunable double quantum dot using microwave excitation. Under resonant conditions, microwaves drive transitions…”
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Coulomb-modified fano resonance in a one-lead quantum dot by JOHNSON, A. C, MARCUS, C. M, HANSON, M. P, GOSSARD, A. C

“…We investigate a tunable Fano interferometer consisting of a quantum dot coupled via tunneling to a one-dimensional channel. In addition to Fano resonance, the…”
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Triplet-singlet spin relaxation via nuclei in a double quantum dot by Gossard, A. C, Lukin, M. D, Taylor, J. M, Johnson, A. C, Yacoby, A, Hanson, M. P, Marcus, C. M, Petta, J. R

“…The spin of a confined electron, when oriented originally in some direction, will lose memory of that orientation after some time. Physical mechanisms leading…”
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Coherent operations and screening in multielectron spin qubits by Higginbotham, A P, Kuemmeth, F, Hanson, M P, Gossard, A C, Marcus, C M

“…Multielectron spin qubits are demonstrated, and performance examined by comparing coherent exchange oscillations in coupled single-electron and multielectron…”
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Tunable Nonlocal Spin Control in a Coupled-Quantum Dot System by Craig, N. J., Taylor, J. M., Lester, E. A., Marcus, C. M., Hanson, M. P., Gossard, A. C.

“…The effective interaction between magnetic impurities in metals that can lead to various magnetic ground states often competes with a tendency for electrons…”
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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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Charge-state conditional operation of a spin qubit by van Weperen, I, Armstrong, B D, Laird, E A, Medford, J, Marcus, C M, Hanson, M P, Gossard, A C

“…We report coherent operation of a singlet-triplet qubit controlled by the spatial arrangement of two confined electrons in an adjacent double quantum dot that…”
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Relaxation and readout visibility of a singlet-triplet qubit in an Overhauser field gradient by Barthel, C., Medford, J., Bluhm, H., Yacoby, A., Marcus, C. M., Hanson, M. P., Gossard, A. C.

“…Using single-shot charge detection in a GaAs double quantum dot, we investigate spin relaxation time (T sub(1)) and readout visibility of a two-electron…”
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Measurement of temporal correlations of the overhauser field in a double quantum dot by Reilly, D J, Taylor, J M, Laird, E A, Petta, J R, Marcus, C M, Hanson, M P, Gossard, A C

“…In quantum dots made from materials with nonzero nuclear spins, hyperfine coupling creates a fluctuating effective Zeeman field (Overhauser field) felt by…”
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Imaging magnetic focusing of coherent electron waves by Aidala, Katherine E, Westervelt, R. M, Parrott, Robert E, Kramer, Tobias, Heller, E. J, Hanson, M. P, Gossard, A. C

“…The coherent flow of electrons through a two-dimensional electron gas (2DEG) offers promising approaches for spintronics and quantum information processing…”
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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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Differential charge sensing and charge delocalization in a tunable double quantum dot by DiCarlo, L, Lynch, H J, Johnson, A C, Childress, L I, Crockett, K, Marcus, C M, Hanson, M P, Gossard, A C

“…We report measurements of a tunable double quantum dot, operating in the quantum regime, with integrated local charge sensors. The spatial resolution of the…”
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Singlet-triplet spin blockade and charge sensing in a few-electron double quantum dot by JOHNSON, A. C, PETTA, J. R, MARCUS, C. M, HANSON, M. P, GOSSARD, A. C

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Exchange control of nuclear spin diffusion in a double quantum dot by Reilly, D J, Taylor, J M, Petta, J R, Marcus, C M, Hanson, M P, Gossard, A C

“…The influence of gate-controlled two-electron exchange on the relaxation of nuclear polarization in small ensembles (N∼10(6)) of nuclear spins is examined in a…”
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Asymmetry of nonlinear transport and electron interactions in quantum dots by Zumbühl, D M, Marcus, C M, Hanson, M P, Gossard, A C

“…The symmetry properties of transport beyond the linear regime in chaotic quantum dots are investigated experimentally. A component of differential conductance…”
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Pulsed-gate measurements of the singlet-triplet relaxation time in a two-electron double quantum dot by PETTA, J. R, JOHNSON, A. C, YACOBY, A, MARCUS, C. M, HANSON, M. P, GOSSARD, A. C

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