Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Christoph Kloeffel"'
Exchange interaction of hole-spin qubits in double quantum dots in highly anisotropic semiconductors
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033036 (2020)
We study the exchange interaction between two hole-spin qubits in a double quantum dot setup in a silicon nanowire in the presence of magnetic and electric fields. Based on symmetry arguments we show that there exists an effective spin that is conser
Externí odkaz:
https://doaj.org/article/89e03ea09283458bbec1e406667bfd57
Publikováno v:
Quantum, Vol 2, p 70 (2018)
We study theoretically the phonon-induced relaxation and decoherence of spin states of two electrons in a lateral double quantum dot in a SiGe/Si/SiGe heterostructure. We consider two types of singlet-triplet spin qubits and calculate their relaxatio
Externí odkaz:
https://doaj.org/article/0b9e8f8732d042759d9942a46149f73d
Autor:
Christoph Kloeffel, Georgios Katsaros, Menno Veldhorst, Floris A. Zwanenburg, Giordano Scappucci, Silvano De Franceschi, Maksym Myronov, Jian-Jun Zhang, Daniel Loss
Publikováno v:
Nature Reviews Materials
Nature Reviews Materials, 2021, 6 (10), pp.926-943. ⟨10.1038/s41578-020-00262-z⟩
Nature Reviews Materials, 2021, 6 (10), pp.926-943. ⟨10.1038/s41578-020-00262-z⟩
In the effort to develop disruptive quantum technologies, germanium is emerging as a versatile material to realize devices capable of encoding, processing and transmitting quantum information. These devices leverage the special properties of holes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7f5c7b54861b97a737a6506e5bedae1
https://hal.science/hal-03541751
https://hal.science/hal-03541751
Exchange interaction of hole-spin qubits in double quantum dots in highly anisotropic semiconductors
Publikováno v:
Physical Review Research. 2
We study the exchange interaction between two hole-spin qubits in a double quantum dot setup in a silicon nanowire in the presence of magnetic and electric fields. Based on symmetry arguments we show that there exists an effective spin that is conser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14a74e4be82d43fedb62f4f3306a1da6
https://doi.org/10.1103/physrevresearch.2.033036
https://doi.org/10.1103/physrevresearch.2.033036
Autor:
Gui‐Lei Wang, Christoph Kloeffel, Jian-Huan Wang, Lada Vukušić, Georgios Katsaros, Marko J. Rančić, Hao Hu, Josip Kukučka, Fei Gao, Hannes Watzinger, Feng Liu, Jian-Jun Zhang, Ting Wang, Daniel Loss, Yuan Yao, Jie-Yin Zhang
Publikováno v:
Advanced Materials
Semiconductor nanowires have been playing a crucial role in the development of nanoscale devices for the realization of spin qubits, Majorana fermions, single photon emitters, nanoprocessors, etc. The monolithic growth of site-controlled nanowires is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17fc4c73d2932678e58eb4f2a004c61c
https://pubmed.ncbi.nlm.nih.gov/32105375
https://pubmed.ncbi.nlm.nih.gov/32105375
We study theoretically the spin-orbit interaction of low-energy electrons in semiconducting nanowires with a zinc-blende lattice. The effective Dresselhaus term is derived for various growth directions, including -oriented nanowires. While a specific
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8dd07d8a37e84f3e2504f580e452c32e
http://arxiv.org/abs/1910.00562
http://arxiv.org/abs/1910.00562
Autor:
Josip Kukučka, Yuan Yao, Daniel Loss, Jie-Yin Zhang, Hao Hu, Jian-Jun Zhang, Lada Vukušić, Ting Wang, Gui‐Lei Wang, Christoph Kloeffel, Hannes Watzinger, Feng Liu, Georgios Katsaros, Marko J. Rančić, Fei Gao, Jian-Huan Wang
Publikováno v:
Advanced Materials. 32:2070122
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecd43798a2dfbfc5183e1d8dc7e67ded
https://doi.org/10.1002/adma.202070122
https://doi.org/10.1002/adma.202070122
Publikováno v:
Physical Review B. 95
We analyze and give estimates for the long-distance coupling via floating metallic gates between different types of spin qubits in quantum dots made of different commonly used materials. In particular, we consider the hybrid, the singlet-triplet, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a641a2b582f7be79abf11ed541109148
https://doi.org/10.1103/physrevb.95.245422
https://doi.org/10.1103/physrevb.95.245422
We study theoretically the low-energy hole states in Si, Ge, and Ge/Si core/shell nanowires (NWs). The NW core in our model has a rectangular cross section, the results for a square cross section are presented in detail. In the case of Ge and Ge/Si c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53f8ae67fd18207bb010a002b0695900
Publikováno v:
Quantum, Vol 2, p 70 (2018)
We study theoretically the phonon-induced relaxation and decoherence of spin states of two electrons in a lateral double quantum dot in a SiGe/Si/SiGe heterostructure. We consider two types of singlet-triplet spin qubits and calculate their relaxatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c6a2fcf2d7334f9cb178e5d1eb67d4f