Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Thewalt, Mike"'
Autor:
Clear, Chloe, Hosseini, Sara, AlizadehKhaledi, Amirhossein, Brunelle, Nicholas, Woolverton, Austin, Kanaganayagam, Joshua, Kazemi, Moein, Chartrand, Camille, Keshavarz, Mehdi, Xiong, Yihuang, Soykal, Oney O., Hautier, Geoffroy, Karassiouk, Valentin, Thewalt, Mike, Higginbottom, Daniel, Simmons, Stephanie
The silicon T centre's narrow, telecommunications-band optical emission, long spin coherence, and direct photonic integration have spurred interest in this emitter as a spin-photon interface for distributed quantum computing and networking. However,
Externí odkaz:
http://arxiv.org/abs/2405.07144
Autor:
Saeedi, Kamyar, Simmons, Stephanie, Salvail, Jeff Z., Dluhy, Phillip, Riemann, Helge, Abrosimov, Nikolai V., Becker, Peter, Pohl, Hans-Joachim, Morton, John J. L., Thewalt, Mike L. W.
Publikováno v:
Science (2013) Vol 342, Issue 6160 pp. 830-833
Quantum memories capable of storing and retrieving coherent information for extended times at room temperature would enable a host of new technologies. Electron and nuclear spin qubits using shallow neutral donors in semiconductors have been studied
Externí odkaz:
http://arxiv.org/abs/2303.17734
Autor:
Ross, Philipp, Rose, Brendon C., Lo, Cheuk C., Thewalt, Mike L. W., Tyryshkin, Alexei M., Lyon, Stephen A., Morton, John J. L.
Publikováno v:
Phys. Rev. Applied 11, 054014 (2019)
Coherence times of electron spins bound to phosphorus donors have been measured, using a standard Hahn echo technique, to be up to 20 ms in isotopically pure silicon with [P]$ = 10^{14}$ cm$^{-3}$ and at temperatures $\leq 4 $K. Although such times a
Externí odkaz:
http://arxiv.org/abs/1902.01343
Autor:
Mansir, John, Conti, Pierandrea, Zeng, Zaiping, Pla, Jarryd J., Bertet, Patrice, Swift, Michael W., Van de Walle, Chris G., Thewalt, Mike L. W., Sklenard, Benoit, Niquet, Yann-Michel, Morton, John J. L.
Publikováno v:
Phys. Rev. Lett. 120, 167701 (2018)
We experimentally study the coupling of Group V donor spins in silicon to mechanical strain, and measure strain-induced frequency shifts which are linear in strain, in contrast to the quadratic dependence predicted by the valley repopulation model (V
Externí odkaz:
http://arxiv.org/abs/1710.00723
Autor:
Petersen, Evan S., Tyryshkin, Alexei M., Itoh, Kohei M., Riemann, Helge, Abrosimov, Nikolai V., Becker, Peter, Pohl, Hans-Joachim, Thewalt, Mike L. W., Lyon, Stephen A.
We use the nuclear spin coherence of $^{31}$P donors in $^{28}$Si to determine flip-flop rates of donor electron spins. Isotopically purified $^{28}$Si crystals minimize the number of $^{29}$Si flip-flops, and measurements at 1.7 K suppress electron
Externí odkaz:
http://arxiv.org/abs/1709.02881
Autor:
Petersen, Evan S., Tyryshkin, Alexei M., Morton, John J. L., Abe, Eisuke, Tojo, Shinichi, Itoh, Kohei M., Thewalt, Mike L. W., Lyon, Stephen A.
Publikováno v:
Phys. Rev. B 93, 161202 (2016)
Spectral diffusion arising from $^{29}$Si nuclear spin flip-flops, known to be a primary source of electron spin decoherence in silicon, is also predicted to limit the coherence times of neutral donor nuclear spins in silicon. Here, the impact of thi
Externí odkaz:
http://arxiv.org/abs/1508.05362
Autor:
Wolfowicz, Gary, Mortemousque, Pierre-Andre, Guichard, Roland, Simmons, Stephanie, Thewalt, Mike L. W., Itoh, Kohei M., Morton, John J. L.
Nuclear spin registers in the vicinity of electron spins in solid state systems offer a powerful resource to address the challenge of scalability in quantum architectures. We investigate here the properties of $^{29}$Si nuclear spins surrounding dono
Externí odkaz:
http://arxiv.org/abs/1505.02057
Autor:
Nardo, Roberto Lo, Wolfowicz, Gary, Simmons, Stephanie, Tyryshkin, Alexei M., Riemann, Helge, Abrosimov, Nikolai V., Becker, Peter, Pohl, Hans-Joachim, Steger, Michael, Lyon, Stephen A., Thewalt, Mike L. W., Morton, John J. L.
Selenium impurities in silicon are deep double donors and their optical and electronic properties have been recently investigated due to their application for infrared detection. However, a singly-ionised selenium donor (Se$^{+}$) possesses an electr
Externí odkaz:
http://arxiv.org/abs/1503.05811
Autor:
Wolfowicz, Gary, Urdampilleta, Matias, Thewalt, Mike L. W., Riemann, Helge, Abrosimov, Nikolai V., Becker, Peter, Pohl, Hans-Joachim, Morton, John J. L.
Electric fields can be used to tune donor spins in silicon using the Stark shift, whereby the donor electron wave function is displaced by an electric field, modifying the hyperfine coupling between the electron spin and the donor nuclear spin. We pr
Externí odkaz:
http://arxiv.org/abs/1405.7420
Autor:
Sigillito, Anthony J., Malissa, Hans, Tyryshkin, Alexei M., Riemann, Helge, Abrosimov, Nikolai V., Becker, Peter, Pohl, Hans-Joachim, Thewalt, Mike L. W., Itoh, Kohei M., Morton, John J. L., Houck, Andrew A., Schuster, David I., Lyon, S. A.
We demonstrate the use of high-Q superconducting coplanar waveguide (CPW) microresonators to perform rapid manipulations on a randomly distributed spin ensemble using very low microwave power (400 nW). This power is compatible with dilution refrigera
Externí odkaz:
http://arxiv.org/abs/1403.0018