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Wide dynamic range magnetic field cycler: Harnessing quantum control at low and high fields.
Ajoy, A; Lv, X; Druga, E; Liu, K; Safvati, B; Morabe, A; Fenton, M; Nazaryan, R; Patel, S; Sjolander, T F; Reimer, J A; Sakellariou, D; Meriles, C A; Pines, A.
Afiliação
  • Ajoy A; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Lv X; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Druga E; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Liu K; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Safvati B; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Morabe A; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Fenton M; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Nazaryan R; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Patel S; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Sjolander TF; Department of Chemistry, University of California, Berkeley, California 94720, USA.
  • Reimer JA; Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.
  • Sakellariou D; Centre for Surface Chemistry and Catalysis, Department of Microbial and Molecular Systems (M2S), KU Leuven, Celestijnenlaan 200F P.O. Box 2461, 3001 Leuven, Belgium.
  • Meriles CA; Department of Physics, CUNY-City College of New York, New York, New York 10031, USA.
  • Pines A; Department of Chemistry, University of California, Berkeley, California 94720, USA.
Rev Sci Instrum ; 90(1): 013112, 2019 Jan.
Article em En | MEDLINE | ID: mdl-30709175
We describe the construction of a fast field cycling device capable of sweeping a 4-order-of-magnitude range of magnetic fields, from ∼1 mT to 7 T, in under 700 ms, and which is further extendable to a 1 nT-7 T range. Central to this system is a high-speed sample shuttling mechanism between a superconducting magnet and a magnetic shield, with the capability to access arbitrary fields in between with high resolution. Our instrument serves as a versatile platform to harness the inherent dichotomy of spin dynamics on offer at low and high fields-in particular, the low anisotropy, fast spin manipulation, and rapid entanglement growth at low field as well as the long spin lifetimes, spin specific control, and efficient inductive measurement possible at high fields. Exploiting these complementary capabilities in a single device opens up applications in a host of problems in quantum control, sensing, and information storage, besides in nuclear hyperpolarization, relaxometry, and imaging. In particular, in this paper, we focus on the ability of the device to enable low-field hyperpolarization of 13C nuclei in diamond via optically pumped electronic spins associated with nitrogen vacancy defect centers.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Rev Sci Instrum Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Rev Sci Instrum Ano de publicação: 2019 Tipo de documento: Article País de afiliação: Estados Unidos País de publicação: Estados Unidos