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Vibronic States and...
Vibronic States and Their Effect on the Temperature and Strain Dependence of Silicon-Vacancy Qubits in 4H-SiC
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- Udvarhelyi, Peter (författare)
- Eotvos Lorand Univ, Hungary; Wigner Res Ctr Phys, Hungary; Budapest Univ Technol and Econ, Hungary
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- Thiering, Gergo (författare)
- Wigner Res Ctr Phys, Hungary
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- Morioka, Naoya (författare)
- Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany
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- Babin, Charles (författare)
- Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany
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- Kaiser, Florian (författare)
- Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany
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- Lukin, Daniil (författare)
- Stanford Univ, CA 94305 USA
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- Ohshima, Takeshi (författare)
- Natl Inst Quantum and Radiol Sci and Technol, Japan
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- Ul-Hassan, Jawad (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
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- Nguyen, Son Tien (författare)
- Linköpings universitet,Halvledarmaterial,Tekniska fakulteten
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- Vuckovic, Jelena (författare)
- Stanford Univ, CA 94305 USA
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- Wrachtrup, Jorg (författare)
- Univ Stuttgart, Germany; Inst Quantum Sci and Technol IQST, Germany
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- Gali, Adam (författare)
- Wigner Res Ctr Phys, Hungary; Budapest Univ Technol and Econ, Hungary
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(creator_code:org_t)
- AMER PHYSICAL SOC, 2020
- 2020
- Engelska.
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Ingår i: Physical Review Applied. - : AMER PHYSICAL SOC. - 2331-7019. ; 13:5
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Silicon-vacancy qubits in silicon carbide (SiC) are emerging tools in quantum-technology applications due to their excellent optical and spin properties. In this paper, we explore the effect of temperature and strain on these properties by focusing on the two silicon-vacancy qubits, V1 and V2, in 4H-SiC. We apply density-functional theory beyond the Born-Oppenheimer approximation to describe the temperature-dependent mixing of electronic excited states assisted by phonons. We obtain a polaronic gap of around 5 and 22 meV for the V1 and V2 centers, respectively, which results in a significant difference in the temperature-dependent dephasing and zero-field splitting of the excited states, which explains recent experimental findings. We also compute how crystal deformations affect the zero-phonon line of these emitters. Our predictions are important ingredients in any quantum applications of these qubits sensitive to these effects.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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Udvarhelyi, Pete ...
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Thiering, Gergo
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Morioka, Naoya
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Babin, Charles
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Kaiser, Florian
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Lukin, Daniil
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visa fler...
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Ohshima, Takeshi
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Ul-Hassan, Jawad
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Nguyen, Son Tien
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Vuckovic, Jelena
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Wrachtrup, Jorg
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Gali, Adam
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visa färre...
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Linköpings universitet