Engineering electronic structure to prolong relaxation times in molecular qubits by minimising orbital angular momentumCitation formats

  • External authors:
  • Ana-Maria Ariciu
  • David H. Woen
  • Daniel N. Huh
  • Lydia Nodaraki
  • Andreas Kostopoulos
  • Conrad Goodwin
  • William J. Evans

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Engineering electronic structure to prolong relaxation times in molecular qubits by minimising orbital angular momentum. / Ariciu, Ana-Maria; Woen, David H.; Huh, Daniel N.; Nodaraki, Lydia; Kostopoulos, Andreas; Goodwin, Conrad; Chilton, Nicholas; Mcinnes, Eric; Winpenny, Richard; Evans, William J.; Tuna, Floriana.

In: Nature Communications, 2019.

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Author

Ariciu, Ana-Maria ; Woen, David H. ; Huh, Daniel N. ; Nodaraki, Lydia ; Kostopoulos, Andreas ; Goodwin, Conrad ; Chilton, Nicholas ; Mcinnes, Eric ; Winpenny, Richard ; Evans, William J. ; Tuna, Floriana. / Engineering electronic structure to prolong relaxation times in molecular qubits by minimising orbital angular momentum. In: Nature Communications. 2019.

Bibtex

@article{3752182633a04c0cbe9078cc2736761a,
title = "Engineering electronic structure to prolong relaxation times in molecular qubits by minimising orbital angular momentum",
abstract = "The proposal that paramagnetic transition metal complexes could be used as qubits for quantum information processing (QIP) requires that the molecules retain the spin information for a sufficient length of time to allow computation and error correction. Therefore, understanding how the electron spin-lattice relaxation time (T1) and phase memory time (Tm) relate to structure is important. Previous studies have focused on the ligand shell surrounding the paramagnetic centre, seeking to increase rigidity or remove elements with nuclear spins or both. Here we have studied a family of early 3d- or 4f-metals in the +2 oxidation states where the ground state is effectively a 2S state. This leads to a highly isotropic spin and hence makes the putative qubit insensitive to its environment. We have studied how this influences T1 and Tm and show unusually long times given that the ligand shell is rich in nuclear spins and non-rigid.",
author = "Ana-Maria Ariciu and Woen, {David H.} and Huh, {Daniel N.} and Lydia Nodaraki and Andreas Kostopoulos and Conrad Goodwin and Nicholas Chilton and Eric Mcinnes and Richard Winpenny and Evans, {William J.} and Floriana Tuna",
year = "2019",
doi = "10.1038/s41467-019-11309-3",
language = "English",
journal = "Nature Communications",
issn = "2041-1723",
publisher = "Springer Nature",

}

RIS

TY - JOUR

T1 - Engineering electronic structure to prolong relaxation times in molecular qubits by minimising orbital angular momentum

AU - Ariciu, Ana-Maria

AU - Woen, David H.

AU - Huh, Daniel N.

AU - Nodaraki, Lydia

AU - Kostopoulos, Andreas

AU - Goodwin, Conrad

AU - Chilton, Nicholas

AU - Mcinnes, Eric

AU - Winpenny, Richard

AU - Evans, William J.

AU - Tuna, Floriana

PY - 2019

Y1 - 2019

N2 - The proposal that paramagnetic transition metal complexes could be used as qubits for quantum information processing (QIP) requires that the molecules retain the spin information for a sufficient length of time to allow computation and error correction. Therefore, understanding how the electron spin-lattice relaxation time (T1) and phase memory time (Tm) relate to structure is important. Previous studies have focused on the ligand shell surrounding the paramagnetic centre, seeking to increase rigidity or remove elements with nuclear spins or both. Here we have studied a family of early 3d- or 4f-metals in the +2 oxidation states where the ground state is effectively a 2S state. This leads to a highly isotropic spin and hence makes the putative qubit insensitive to its environment. We have studied how this influences T1 and Tm and show unusually long times given that the ligand shell is rich in nuclear spins and non-rigid.

AB - The proposal that paramagnetic transition metal complexes could be used as qubits for quantum information processing (QIP) requires that the molecules retain the spin information for a sufficient length of time to allow computation and error correction. Therefore, understanding how the electron spin-lattice relaxation time (T1) and phase memory time (Tm) relate to structure is important. Previous studies have focused on the ligand shell surrounding the paramagnetic centre, seeking to increase rigidity or remove elements with nuclear spins or both. Here we have studied a family of early 3d- or 4f-metals in the +2 oxidation states where the ground state is effectively a 2S state. This leads to a highly isotropic spin and hence makes the putative qubit insensitive to its environment. We have studied how this influences T1 and Tm and show unusually long times given that the ligand shell is rich in nuclear spins and non-rigid.

U2 - 10.1038/s41467-019-11309-3

DO - 10.1038/s41467-019-11309-3

M3 - Article

JO - Nature Communications

JF - Nature Communications

SN - 2041-1723

ER -