Zobrazeno 1 - 10
of 203
pro vyhledávání: '"Susan Coppersmith"'
Autor:
Nathan Holman, Brandur Thorgrimsson, Susan Coppersmith, M. Palma, Evan MacQuarrie, Samuel F. Neyens, Mark A. Eriksson, J. Corrigan, J. P. Dodson, Lisa F. Edge, Mark Friesen
Publikováno v:
npj Quantum Information, Vol 6, Iss 1, Pp 1-7 (2020)
Fast operations, an easily tunable Hamiltonian, and a straightforward two-qubit interaction make charge qubits a useful tool for benchmarking device performance and exploring two-qubit dynamics. Here, we tune a linear chain of four Si/SiGe quantum do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::431ca80d7ea99b46b31908fdc83160b5
http://link.springer.com/article/10.1038/s41534-020-00314-w
http://link.springer.com/article/10.1038/s41534-020-00314-w
Implementing two-qubit gates via strong coupling between quantum-dot qubits and a superconducting microwave cavity requires achieving coupling rates that are much faster than decoherence rates. Typically, this involves tuning the qubit either to a sw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b4ca61b7d091ada882d443e521727e59
http://arxiv.org/abs/2106.10555
http://arxiv.org/abs/2106.10555
Publikováno v:
Physical review letters. 128(24)
The valley degree of freedom presents challenges and opportunities for silicon spin qubits. An important consideration for singlet-triplet states is the presence of two distinct triplets, comprised of valley vs. orbital excitations. Here we show that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::142fba96ceba90546bb1eb0fe6544856
https://pubmed.ncbi.nlm.nih.gov/35776472
https://pubmed.ncbi.nlm.nih.gov/35776472
Autor:
Andreas J. Landig, Andreas Wallraff, Benedikt Kratochwil, Werner Wegscheider, Mark Friesen, Christian Reichl, Thomas Ihn, Jonne V. Koski, Pasquale Scarlino, Clemens Müller, Klaus Ensslin, J. C. Abadillo-Uriel, Susan Coppersmith
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Nature Communications, 10 (1)
Nature Communications
Nature Communications, 10 (1)
Nature Communications
Spin qubits and superconducting qubits are among the promising candidates for realizing a solid state quantum computer. For the implementation of a hybrid architecture which can profit from the advantages of either approach, a coherent link is necess
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4617782af086be5bb7ac1950817012e3
https://doaj.org/article/76e42217a7304ee8a419f1ac6db17a12
https://doaj.org/article/76e42217a7304ee8a419f1ac6db17a12
Interactions between electrons can strongly affect the shape and functionality of multi-electron quantum dots. The resulting charge distributions can be localized, as in the case of Wigner molecules, with consequences for the energy spectrum and tunn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daae6ba7a8b278679f8adc1a238af2fa
http://arxiv.org/abs/2105.10645
http://arxiv.org/abs/2105.10645
Autor:
Max G. Lagally, J. P. Dodson, Mark A. Eriksson, Samuel F. Neyens, Robert Joynt, Thomas McJunkin, Susan Coppersmith, Brandur Thorgrimsson, J. Corrigan, Evan MacQuarrie, Donald E. Savage, H. Ekmel Ercan, Mark Friesen, Leah Tom
Silicon-germanium heterostructures have successfully hosted quantum dot qubits, but the intrinsic near-degeneracy of the two lowest valley states poses an obstacle to high fidelity quantum computing. We present a modification to the Si/SiGe heterostr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e8a1d85be625816a92a766b6925f33e
http://arxiv.org/abs/2104.08232
http://arxiv.org/abs/2104.08232
Autor:
Dimitrie Culcer, E. Marcellina, Andre Saraiva, Belita Koiller, Alex R. Hamilton, L. A. Terrazos, Susan Coppersmith, Zhanning Wang, Mark Friesen, Xuedong Hu, Rodrigo B. Capaz
Publikováno v:
Physical Review B. 103
We theoretically investigate the properties of holes in a Si$_{x}$Ge$_{1-x}$/Ge/ Si$_{x}$Ge$_{1-x}$ quantum well in a perpendicular magnetic field that make them advantageous as qubits, including a large ($>$100~meV) intrinsic splitting between the l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c4c84f4562e312c7f307df31f6ca97c
https://doi.org/10.1103/physrevb.103.125201
https://doi.org/10.1103/physrevb.103.125201
Autor:
Amanda E. Seedhouse, Arne Laucht, Andre Saraiva, R. C. C. Leon, Tuomo Tanttu, Bas Hensen, Andrea Morello, Chih Hwan Yang, Susan Coppersmith, Andrew S. Dzurak, Kohei M. Itoh, Jun Yoneda, Ruichen Zhao, Fay E. Hudson, Kuan Yen Tan
Publikováno v:
PRX Quantum. 2
Quantum computation relies on accurate measurements of qubits not only for reading the output of the calculation, but also to perform error correction. Most proposed scalable silicon architectures utilize Pauli blockade of triplet states for spin-to-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0729ee49dd3e30590470551e670f7703
https://doi.org/10.1103/prxquantum.2.010303
https://doi.org/10.1103/prxquantum.2.010303
Autor:
Brandur Thorgrimsson, Susan Coppersmith, Ryan H. Foote, J. C. Abadillo-Uriel, Mark A. Eriksson, Nathan Holman, H. Ekmel Ercan, Mark Friesen, J. P. Dodson, J. Corrigan, Evan MacQuarrie, Samuel F. Neyens, T. J. Knapp, Thomas McJunkin, Lisa F. Edge
Publikováno v:
Physical review letters. 127(12)
Semiconductor quantum dots containing more than one electron have found wide application in qubits, where they enable readout and enhance polarizability. However, coherent control in such dots has typically been restricted to only the lowest two leve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b566d1a1619481bb09016743b804cf4
https://pubmed.ncbi.nlm.nih.gov/34597063
https://pubmed.ncbi.nlm.nih.gov/34597063
Autor:
Belita Koiller, Maria J. Calderon, Susan Coppersmith, Andre Saraiva, Cameron King, Mark Friesen, Hong-Wen Jiang, Joshua S. Schoenfield, Xuedong Hu
Publikováno v:
Physical Review B. 101
One obstacle that has slowed the development of electrically gated metal-oxide-semiconductor (MOS) singlet-triplet qubits is the frequent lack of observed spin blockade, even in samples with large singlet-triplet energy splittings. We present theoret
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd5f430d614a760f799324fac30c3740
https://doi.org/10.1103/physrevb.101.155411
https://doi.org/10.1103/physrevb.101.155411