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Showing 1 to 12 of 296 entries
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Self-consistent measurement and state tomography of an exchange-only spin qubit.

Nature nanotechnology

Medford J, Beil J, Taylor JM, Bartlett SD, Doherty AC, Rashba EI, DiVincenzo DP, Lu H, Gossard AC, Marcus CM.
PMID: 23995458
Nat Nanotechnol. 2013 Sep;8(9):654-9. doi: 10.1038/nnano.2013.168. Epub 2013 Sep 01.

Quantum-dot spin qubits characteristically use oscillating magnetic or electric fields, or quasi-static Zeeman field gradients, to realize full qubit control. For the case of three confined electrons, exchange interaction between two pairs allows qubit rotation around two axes, hence...

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Medford J, Beil J, Taylor JM, et al. Self-consistent measurement and state tomography of an exchange-only spin qubit. Nat Nanotechnol. 2013;8(9):654-9doi: 10.1038/nnano.2013.168.
Medford, J., Beil, J., Taylor, J. M., Bartlett, S. D., Doherty, A. C., Rashba, E. I., DiVincenzo, D. P., Lu, H., Gossard, A. C., & Marcus, C. M. (2013). Self-consistent measurement and state tomography of an exchange-only spin qubit. Nature nanotechnology, 8(9), 654-9. https://doi.org/10.1038/nnano.2013.168
Medford, J, et al. "Self-consistent measurement and state tomography of an exchange-only spin qubit." Nature nanotechnology vol. 8,9 (2013): 654-9. doi: https://doi.org/10.1038/nnano.2013.168
Medford J, Beil J, Taylor JM, Bartlett SD, Doherty AC, Rashba EI, DiVincenzo DP, Lu H, Gossard AC, Marcus CM. Self-consistent measurement and state tomography of an exchange-only spin qubit. Nat Nanotechnol. 2013 Sep;8(9):654-9. doi: 10.1038/nnano.2013.168. Epub 2013 Sep 01. PMID: 23995458.
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Fast electrical control of single electron spins in quantum dots with vanishing influence from nuclear spins.

Physical review letters

Yoneda J, Otsuka T, Nakajima T, Takakura T, Obata T, Pioro-Ladrière M, Lu H, Palmstrøm CJ, Gossard AC, Tarucha S.
PMID: 25615383
Phys Rev Lett. 2014 Dec 31;113(26):267601. doi: 10.1103/PhysRevLett.113.267601. Epub 2014 Dec 23.

We demonstrate fast universal electrical spin manipulation with inhomogeneous magnetic fields. With fast Rabi frequency up to 127 MHz, we leave the conventional regime of strong nuclear-spin influence and observe a spin-flip fidelity >96%, a distinct chevron Rabi pattern...

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Yoneda J, Otsuka T, Nakajima T, et al. Fast electrical control of single electron spins in quantum dots with vanishing influence from nuclear spins. Phys Rev Lett. 2014;113(26):267601doi: 10.1103/PhysRevLett.113.267601.
Yoneda, J., Otsuka, T., Nakajima, T., Takakura, T., Obata, T., Pioro-Ladrière, M., Lu, H., Palmstrøm, C. J., Gossard, A. C., & Tarucha, S. (2014). Fast electrical control of single electron spins in quantum dots with vanishing influence from nuclear spins. Physical review letters, 113(26), 267601. https://doi.org/10.1103/PhysRevLett.113.267601
Yoneda, J, et al. "Fast electrical control of single electron spins in quantum dots with vanishing influence from nuclear spins." Physical review letters vol. 113,26 (2014): 267601. doi: https://doi.org/10.1103/PhysRevLett.113.267601
Yoneda J, Otsuka T, Nakajima T, Takakura T, Obata T, Pioro-Ladrière M, Lu H, Palmstrøm CJ, Gossard AC, Tarucha S. Fast electrical control of single electron spins in quantum dots with vanishing influence from nuclear spins. Phys Rev Lett. 2014 Dec 31;113(26):267601. doi: 10.1103/PhysRevLett.113.267601. Epub 2014 Dec 23. PMID: 25615383.
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Neuronal Polarity in the Embryonic Mammalian Cerebral Cortex.

Frontiers in cellular neuroscience

Kon E, Cossard A, Jossin Y.
PMID: 28670267
Front Cell Neurosci. 2017 Jun 16;11:163. doi: 10.3389/fncel.2017.00163. eCollection 2017.

The cerebral cortex is composed of billions of neurons that can grossly be subdivided into two broad classes: inhibitory GABAergic interneurons and excitatory glutamatergic neurons. The majority of cortical neurons in mammals are the excitatory type and they are...

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Kon E, Cossard A, Jossin Y. Neuronal Polarity in the Embryonic Mammalian Cerebral Cortex. Front Cell Neurosci. 2017;11:163doi: 10.3389/fncel.2017.00163.
Kon, E., Cossard, A., & Jossin, Y. (2017). Neuronal Polarity in the Embryonic Mammalian Cerebral Cortex. Frontiers in cellular neuroscience, 11163. https://doi.org/10.3389/fncel.2017.00163
Kon, Elif, et al. "Neuronal Polarity in the Embryonic Mammalian Cerebral Cortex." Frontiers in cellular neuroscience vol. 11 (2017): 163. doi: https://doi.org/10.3389/fncel.2017.00163
Kon E, Cossard A, Jossin Y. Neuronal Polarity in the Embryonic Mammalian Cerebral Cortex. Front Cell Neurosci. 2017 Jun 16;11:163. doi: 10.3389/fncel.2017.00163. eCollection 2017. PMID: 28670267; PMCID: PMC5472699.
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Two-dimensional snowflake trap for indirect excitons.

Optics letters

Kuznetsova YY, Andreakou P, Hasling MW, Leonard JR, Calman EV, Butov LV, Hanson M, Gossard AC.
PMID: 25680157
Opt Lett. 2015 Feb 15;40(4):589-92. doi: 10.1364/OL.40.000589.

We present experimental proof of principle for two-dimensional electrostatic traps for indirect excitons. A confining trap potential for indirect excitons is created by a snowflake-shaped electrode pattern. We demonstrate collection of indirect excitons from all directions to the trap...

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Kuznetsova YY, Andreakou P, Hasling MW, et al. Two-dimensional snowflake trap for indirect excitons. Opt Lett. 2015;40(4):589-92doi: 10.1364/OL.40.000589.
Kuznetsova, Y. Y., Andreakou, P., Hasling, M. W., Leonard, J. R., Calman, E. V., Butov, L. V., Hanson, M., & Gossard, A. C. (2015). Two-dimensional snowflake trap for indirect excitons. Optics letters, 40(4), 589-92. https://doi.org/10.1364/OL.40.000589
Kuznetsova, Y Y, et al. "Two-dimensional snowflake trap for indirect excitons." Optics letters vol. 40,4 (2015): 589-92. doi: https://doi.org/10.1364/OL.40.000589
Kuznetsova YY, Andreakou P, Hasling MW, Leonard JR, Calman EV, Butov LV, Hanson M, Gossard AC. Two-dimensional snowflake trap for indirect excitons. Opt Lett. 2015 Feb 15;40(4):589-92. doi: 10.1364/OL.40.000589. PMID: 25680157.
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Gigahertz electron spin manipulation using voltage-controlled g-tensor modulation.

Science (New York, N.Y.)

Kato Y, Myers RC, Driscoll DC, Gossard AC, Levy J, Awschalom DD.
PMID: 12543982
Science. 2003 Feb 21;299(5610):1201-4. doi: 10.1126/science.1080880. Epub 2003 Jan 23.

We present a scheme that enables gigahertz-bandwidth three-dimensional control of electron spins in a semiconductor heterostructure with the use of a single voltage signal. Microwave modulation of the Landé g tensor produces frequency-modulated electron spin precession. Driving at the...

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Kato Y, Myers RC, Driscoll DC, et al. Gigahertz electron spin manipulation using voltage-controlled g-tensor modulation. Science. 2003;299(5610):1201-4doi: 10.1126/science.1080880.
Kato, Y., Myers, R. C., Driscoll, D. C., Gossard, A. C., Levy, J., & Awschalom, D. D. (2003). Gigahertz electron spin manipulation using voltage-controlled g-tensor modulation. Science (New York, N.Y.), 299(5610), 1201-4. https://doi.org/10.1126/science.1080880
Kato, Y, et al. "Gigahertz electron spin manipulation using voltage-controlled g-tensor modulation." Science (New York, N.Y.) vol. 299,5610 (2003): 1201-4. doi: https://doi.org/10.1126/science.1080880
Kato Y, Myers RC, Driscoll DC, Gossard AC, Levy J, Awschalom DD. Gigahertz electron spin manipulation using voltage-controlled g-tensor modulation. Science. 2003 Feb 21;299(5610):1201-4. doi: 10.1126/science.1080880. Epub 2003 Jan 23. PMID: 12543982.
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Spin-orbit coupling, antilocalization, and parallel magnetic fields in quantum dots.

Physical review letters

Zumbühl DM, Miller JB, Marcus CM, Campman K, Gossard AC.
PMID: 12513231
Phys Rev Lett. 2002 Dec 30;89(27):276803. doi: 10.1103/PhysRevLett.89.276803. Epub 2002 Dec 18.

We investigate antilocalization due to spin-orbit coupling in ballistic GaAs quantum dots. Antilocalization that is prominent in large dots is suppressed in small dots, as anticipated theoretically. Parallel magnetic fields suppress both antilocalization and also, at larger fields, weak...

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Zumbühl DM, Miller JB, Marcus CM, et al. Spin-orbit coupling, antilocalization, and parallel magnetic fields in quantum dots. Phys Rev Lett. 2002;89(27):276803doi: 10.1103/PhysRevLett.89.276803.
Zumbühl, D. M., Miller, J. B., Marcus, C. M., Campman, K., & Gossard, A. C. (2002). Spin-orbit coupling, antilocalization, and parallel magnetic fields in quantum dots. Physical review letters, 89(27), 276803. https://doi.org/10.1103/PhysRevLett.89.276803
Zumbühl, D M, et al. "Spin-orbit coupling, antilocalization, and parallel magnetic fields in quantum dots." Physical review letters vol. 89,27 (2002): 276803. doi: https://doi.org/10.1103/PhysRevLett.89.276803
Zumbühl DM, Miller JB, Marcus CM, Campman K, Gossard AC. Spin-orbit coupling, antilocalization, and parallel magnetic fields in quantum dots. Phys Rev Lett. 2002 Dec 30;89(27):276803. doi: 10.1103/PhysRevLett.89.276803. Epub 2002 Dec 18. PMID: 12513231.
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Effects of dissipation on a superconducting single electron transistor.

Physical review letters

Kycia JB, Chen J, Therrien R, Kurdak C, Campman KL, Gossard AC, Clarke J.
PMID: 11461486
Phys Rev Lett. 2001 Jul 02;87(1):017002. doi: 10.1103/PhysRevLett.87.017002. Epub 2001 Jun 13.

We measure the effect of dissipation on the minimum zero-bias conductance, G(min)0, of a superconducting single electron transistor (sSET) capacitively coupled to a two-dimensional electron gas (2DEG) in a GaAs/AlGaAs heterostructure. Depleting the 2DEG with a back gate voltage...

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Kycia JB, Chen J, Therrien R, et al. Effects of dissipation on a superconducting single electron transistor. Phys Rev Lett. 2001;87(1):017002doi: 10.1103/PhysRevLett.87.017002.
Kycia, J. B., Chen, J., Therrien, R., Kurdak , C., Campman, K. L., Gossard, A. C., & Clarke, J. (2001). Effects of dissipation on a superconducting single electron transistor. Physical review letters, 87(1), 017002. https://doi.org/10.1103/PhysRevLett.87.017002
Kycia, J B, et al. "Effects of dissipation on a superconducting single electron transistor." Physical review letters vol. 87,1 (2001): 017002. doi: https://doi.org/10.1103/PhysRevLett.87.017002
Kycia JB, Chen J, Therrien R, Kurdak C, Campman KL, Gossard AC, Clarke J. Effects of dissipation on a superconducting single electron transistor. Phys Rev Lett. 2001 Jul 02;87(1):017002. doi: 10.1103/PhysRevLett.87.017002. Epub 2001 Jun 13. PMID: 11461486.
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Imaging coherent electron flow from a quantum point contact.

Science (New York, N.Y.)

Topinka MA, LeRoy BJ, Shaw SE, Heller EJ, Westervelt RM, Maranowski KD, Gossard AC.
PMID: 11009412
Science. 2000 Sep 29;289(5488):2323-6. doi: 10.1126/science.289.5488.2323.

Scanning a charged tip above the two-dimensional electron gas inside a gallium arsenide/aluminum gallium arsenide nanostructure allows the coherent electron flow from the lowest quantized modes of a quantum point contact at liquid helium temperatures to be imaged. As...

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Topinka MA, LeRoy BJ, Shaw SE, et al. Imaging coherent electron flow from a quantum point contact. Science. 2000;289(5488):2323-6doi: 10.1126/science.289.5488.2323.
Topinka, M. A., LeRoy, B. J., Shaw, S. E., Heller, E. J., Westervelt, R. M., Maranowski, K. D., & Gossard, A. C. (2000). Imaging coherent electron flow from a quantum point contact. Science (New York, N.Y.), 289(5488), 2323-6. https://doi.org/10.1126/science.289.5488.2323
Topinka, et al. "Imaging coherent electron flow from a quantum point contact." Science (New York, N.Y.) vol. 289,5488 (2000): 2323-6. doi: https://doi.org/10.1126/science.289.5488.2323
Topinka MA, LeRoy BJ, Shaw SE, Heller EJ, Westervelt RM, Maranowski KD, Gossard AC. Imaging coherent electron flow from a quantum point contact. Science. 2000 Sep 29;289(5488):2323-6. doi: 10.1126/science.289.5488.2323. PMID: 11009412.
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Macroscopically ordered state in an exciton system.

Nature

Butov LV, Gossard AC, Chemla DS.
PMID: 12181559
Nature. 2002 Aug 15;418(6899):751-4. doi: 10.1038/nature00943.

There is a rich variety of quantum liquids -- such as superconductors, liquid helium and atom Bose-Einstein condensates -- that exhibit macroscopic coherence in the form of ordered arrays of vortices. Experimental observation of a macroscopically ordered electronic state...

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Butov LV, Gossard AC, Chemla DS. Macroscopically ordered state in an exciton system. Nature. 2002;418(6899):751-4doi: 10.1038/nature00943.
Butov, L. V., Gossard, A. C., & Chemla, D. S. (2002). Macroscopically ordered state in an exciton system. Nature, 418(6899), 751-4. https://doi.org/10.1038/nature00943
Butov, L V, et al. "Macroscopically ordered state in an exciton system." Nature vol. 418,6899 (2002): 751-4. doi: https://doi.org/10.1038/nature00943
Butov LV, Gossard AC, Chemla DS. Macroscopically ordered state in an exciton system. Nature. 2002 Aug 15;418(6899):751-4. doi: 10.1038/nature00943. PMID: 12181559.
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Phase diagram of degenerate exciton systems.

Science (New York, N.Y.)

Lai CW, Zoch J, Gossard AC, Chemla DS.
PMID: 14739453
Science. 2004 Jan 23;303(5657):503-6. doi: 10.1126/science.1092691.

Degenerate exciton systems have been produced in quasi-two-dimensional confined areas in semiconductor coupled quantum well structures. We observed contractions of clouds containing tens of thousands of excitons within areas as small as (10 micron)2 near 10 kelvin. The spatial...

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Lai CW, Zoch J, Gossard AC, et al. Phase diagram of degenerate exciton systems. Science. 2004;303(5657):503-6doi: 10.1126/science.1092691.
Lai, C. W., Zoch, J., Gossard, A. C., & Chemla, D. S. (2004). Phase diagram of degenerate exciton systems. Science (New York, N.Y.), 303(5657), 503-6. https://doi.org/10.1126/science.1092691
Lai, C W, et al. "Phase diagram of degenerate exciton systems." Science (New York, N.Y.) vol. 303,5657 (2004): 503-6. doi: https://doi.org/10.1126/science.1092691
Lai CW, Zoch J, Gossard AC, Chemla DS. Phase diagram of degenerate exciton systems. Science. 2004 Jan 23;303(5657):503-6. doi: 10.1126/science.1092691. PMID: 14739453.
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Formation mechanism and low-temperature instability of exciton rings.

Physical review letters

Butov LV, Levitov LS, Mintsev AV, Simons BD, Gossard AC, Chemla DS.
PMID: 15089167
Phys Rev Lett. 2004 Mar 19;92(11):117404. doi: 10.1103/PhysRevLett.92.117404. Epub 2004 Mar 18.

The macroscopic rings observed in the photoluminescence patterns of excitons in coupled quantum wells are explained by a mechanism of carrier imbalance, transport, and recombination. The rings originate from the spatial separation of p and n carriers, and occur...

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Butov LV, Levitov LS, Mintsev AV, et al. Formation mechanism and low-temperature instability of exciton rings. Phys Rev Lett. 2004;92(11):117404doi: 10.1103/PhysRevLett.92.117404.
Butov, L. V., Levitov, L. S., Mintsev, A. V., Simons, B. D., Gossard, A. C., & Chemla, D. S. (2004). Formation mechanism and low-temperature instability of exciton rings. Physical review letters, 92(11), 117404. https://doi.org/10.1103/PhysRevLett.92.117404
Butov, L V, et al. "Formation mechanism and low-temperature instability of exciton rings." Physical review letters vol. 92,11 (2004): 117404. doi: https://doi.org/10.1103/PhysRevLett.92.117404
Butov LV, Levitov LS, Mintsev AV, Simons BD, Gossard AC, Chemla DS. Formation mechanism and low-temperature instability of exciton rings. Phys Rev Lett. 2004 Mar 19;92(11):117404. doi: 10.1103/PhysRevLett.92.117404. Epub 2004 Mar 18. PMID: 15089167.
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Stimulated scattering of indirect excitons in coupled quantum wells: signature of a degenerate Bose-gas of excitons.

Physical review letters

Butov LV, Ivanov AL, Imamoglu A, Littlewood PB, Shashkin AA, Dolgopolov VT, Campman KL, Gossard AC.
PMID: 11415313
Phys Rev Lett. 2001 Jun 11;86(24):5608-11. doi: 10.1103/PhysRevLett.86.5608.

We observe and analyze strongly nonlinear photoluminescence kinetics of indirect excitons in GaAs/AlGaAs coupled quantum wells at low bath temperatures, > or = 50 mK. The long recombination lifetime of indirect excitons promotes accumulation of these Bose particles in...

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Butov LV, Ivanov AL, Imamoglu A, et al. Stimulated scattering of indirect excitons in coupled quantum wells: signature of a degenerate Bose-gas of excitons. Phys Rev Lett. 2001;86(24):5608-11doi: 10.1103/PhysRevLett.86.5608.
Butov, L. V., Ivanov, A. L., Imamoglu, A., Littlewood, P. B., Shashkin, A. A., Dolgopolov, V. T., Campman, K. L., & Gossard, A. C. (2001). Stimulated scattering of indirect excitons in coupled quantum wells: signature of a degenerate Bose-gas of excitons. Physical review letters, 86(24), 5608-11. https://doi.org/10.1103/PhysRevLett.86.5608
Butov, L V, et al. "Stimulated scattering of indirect excitons in coupled quantum wells: signature of a degenerate Bose-gas of excitons." Physical review letters vol. 86,24 (2001): 5608-11. doi: https://doi.org/10.1103/PhysRevLett.86.5608
Butov LV, Ivanov AL, Imamoglu A, Littlewood PB, Shashkin AA, Dolgopolov VT, Campman KL, Gossard AC. Stimulated scattering of indirect excitons in coupled quantum wells: signature of a degenerate Bose-gas of excitons. Phys Rev Lett. 2001 Jun 11;86(24):5608-11. doi: 10.1103/PhysRevLett.86.5608. PMID: 11415313.
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Showing 1 to 12 of 296 entries