INSP

INSP

Quantum technology – Coherent qubit control and quantum decoherence – Coherence and spin manipulation in nanostructures

Members

Thierry Barisien, Frederick Bernardot, Maria Chamarro, Alex Chin, Laurent Legrand, Christophe Testelin

Caption: Spin coherence and impurity handling in different semiconductor materials. A single carrier trapped by individual donors or acceptors in semiconductors is a promising qubit because it combines the advantages of both semiconductor and atomic systems. The goal of our project is to study the decoherence mechanisms operating in the system and possible schemes for manipulation of a single spin qubit and entanglement of two spin qubits. (The spin qubit illustration – Bloch sphere – is taken from Chem. Soc. Rev. 2018, 47, 501).

 

Founding

  • PhD grant : EDPIF ANR IPER-Nano2

 

Main collaborations

  • INSP – Clean room : Loic Becerra and Erwan Dandeu
  • Grzegorz Karczewski, Institute of Physics of the Polish Academy of Sciences, Poland
  • Emmanuelle Deleporte, Laboratoire Aimé Cotton, (LAC), Orsay, France
  • Damien Garrot, A.S. Said Hassani, Alain Lusson et Vincent Sallet, Groupe d’Étude de la Matière Condensée (GEMAC), Versailles, France

 

Publications

  • G. Garcia-Arellano, C. Testelin, Frédéric Bernardot, Maria Chamarro, Karczewski G.. Longitudinal spin relaxation time of donor-bound electrons in a CdTe quantum well. Physical Review B, American Physical Society, 2020, 102 (16), ⟨10.1103/PhysRevB.102.165314⟩. ⟨hal-03095950⟩
  • G. Garcia-Arellano, F. Bernardot, G. Karczewski, C. Testelin, M. Chamarro. Temperature dependence of the spin relaxation time of donor-bound electrons immersed in a CdTe quantum well. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 100 (20), ⟨10.1103/PhysRevB.100.205305⟩. ⟨hal-02390109⟩
  • G. Garcia-Arellano, F. Bernardot, G. Karczewski, C. Testelin, M. Chamarro. Spin relaxation time of donor-bound electrons in a CdTe quantum well. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2019, 99 (23), pp.202202. ⟨10.1103/PhysRevB.99.235301⟩. ⟨hal-02390027⟩
  • G. Garcia-Arellano, F. Bernardot, C. Testelin, M. Chamarro. Electron exchange energy of neutral donors inside a quantum well. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2018, 98 (19), ⟨10.1103/PhysRevB.98.195308⟩. ⟨hal-02390029⟩