Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Christian Vorwerk"'
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Virtually noiseless due to the scarcity of spinful nuclei in the lattice, simple oxides hold promise as hosts of solid-state spin qubits. However, no suitable spin defect has yet been found in these systems. Using high-throughput first-princ
Externí odkaz:
https://doaj.org/article/f9dd4a21c6904be696ce544778db3529
Autor:
Manato Kawahara, Yuichiro Abe, Koki Takano, F. Joseph Heremans, Jun Ishihara, Sean E. Sullivan, Christian Vorwerk, Vrindaa Somjit, Christopher P. Anderson, Gary Wolfowicz, Makoto Kohda, Shunsuke Fukami, Giulia Galli, David D. Awschalom, Hideo Ohno, Shun Kanai
Publikováno v:
Applied Physics Express, Vol 17, Iss 7, p 072004 (2024)
Since the qubit’s performance of solid-state spin centers depends highly on the host material, spin centers using new host materials may offer new qubit applications. We investigate the optical properties of Ce-implanted MgO and MgAl _2 O _4 as pot
Externí odkaz:
https://doaj.org/article/7554dc6c742749cb89e2ba4f7ed32c0c
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 042003 (2020)
Resonant inelastic x-ray scattering (RIXS) is a powerful spectroscopic technique that offers an elemental- and orbital-selective probe of the electronic excitations over a huge energy range. We present a many-body approach to determine RIXS spectra i
Externí odkaz:
https://doaj.org/article/30c8ad35527a400ebd3472c42f0a4905
Publikováno v:
Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, 2022, 24 (29), pp.17439-17448. ⟨10.1039/D2CP00994C⟩
Physical Chemistry Chemical Physics, 2022, 24 (29), pp.17439-17448. ⟨10.1039/D2CP00994C⟩
We present a formalism for the resonant inelastic x-ray scattering (RIXS) cross section. The resulting compact expression in terms of polarizability matrix elements, particularly lends itself to the implementation in an all-electron many-body perturb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62401fc2f234183e94ac280566f304c1
http://arxiv.org/abs/2205.05201
http://arxiv.org/abs/2205.05201
We present a Green's function formulation of the quantum defect embedding theory (QDET) where a double counting scheme is rigorously derived within the $G_0 W_0$ approximation. We then show the robustness of our methodology by applying the theory wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71c9ba92a4d24fb36fc2904a05ac0e2f
http://arxiv.org/abs/2203.05493
http://arxiv.org/abs/2203.05493
Autor:
Christopher P. Anderson, Elena O. Glen, Cyrus Zeledon, Alexandre Bourassa, Yu Jin, Yizhi Zhu, Christian Vorwerk, Alexander L. Crook, Hiroshi Abe, Jawad Ul-Hassan, Takeshi Ohshima, Nguyen T. Son, Giulia Galli, David D. Awschalom
Publikováno v:
Quantum 2.0 Conference and Exhibition.
Single-shot readout of divacancy spin qubits in silicon carbide is demonstrated through spin-selective two-photon ionization and subsequent optical charge readout. With this readout, we measure single-spin coherence times of over five seconds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84af5d06560a238fcad3b2d4d929eb1a
https://doi.org/10.1364/quantum.2022.qtu3b.1
https://doi.org/10.1364/quantum.2022.qtu3b.1
Autor:
Christopher P. Anderson, Elena O. Glen, Cyrus Zeledon, Alexandre Bourassa, Yu Jin, Yizhi Zhu, Christian Vorwerk, Alexander L. Crook, Hiroshi Abe, Jawad Ul-Hassan, Takeshi Ohshima, Nguyen T. Son, Giulia Galli, David D. Awschalom
Publikováno v:
Conference on Lasers and Electro-Optics.
We demonstrate single-shot readout of spin qubits in silicon carbide through spin-selective two-photon ionization and subsequent optical charge readout. We use this readout to measure single-spin electronic coherence times of over five seconds.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2162baa1fbcad128495a917a0474401
https://doi.org/10.1364/cleo_si.2022.stu5f.1
https://doi.org/10.1364/cleo_si.2022.stu5f.1
Publikováno v:
Clinical Ophthalmology, Vol 2008, Iss Issue 3, Pp 601-607 (2008)
Sandra Jobke1, Erich Kasten2, Christian Vorwerk31Institute of Medical Psychology, 3Department of Ophthalmology, Otto-von Guericke-University of Magdeburg, Magdeburg, Germany; 2Institute of Medical Psychology, University Hospital Schleswig-Holstein, L
Externí odkaz:
https://doaj.org/article/f0400dae2fee4839a91d9aafb6a3af7c
Here we report the optical and x-ray absorption (XAS) spectra of the wide-band-gap oxide MgO using density functional theory (DFT) and many-body perturbation theory (MBPT). Our comprehensive study of the electronic structure shows that while the band
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2d2ddbae4c299a902a06d259998af88
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85106060044
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85106060044
Quantum computers hold promise to improve the efficiency of quantum simulations of materials and to enable the investigation of systems and properties more complex than tractable at present on classical architectures. Here, we discuss computational f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bc6f5362f511b0cdb9990ce2c6b997f