Group of Quantum Bits Acting as a Bit Using a Single-Domain Ferromagnet of Uniaxial Magnetic Ions

Gordon, Elijah E.; Koo, Hyun-Joo; Deng, Shuiquan; Köhler, Jürgen; Whangbo, Myung-Hwan

doi:10.1002/cphc.201700609

Title: Group of Quantum Bits Acting as a Bit Using a Single-Domain Ferromagnet of Uniaxial Magnetic Ions

Journal Article · 01 June 2017 · ChemPhysChem

DOI: https://doi.org/10.1002/cphc.201700609 · OSTI ID:1461661

Gordon, Elijah E. ^[1]; Koo, Hyun-Joo ^[2]; Deng, Shuiquan ^[3]; Köhler, Jürgen ^[4];

^[5]

North Carolina State Univ., Raleigh, NC (United States)
Kyung Hee Univ., Seoul (Korea)
Chinese Academy of Sciences (CAS), Fuzhou (China)
Max Planck Inst. for Solid State Research, Stuttgart (Germany)
North Carolina State Univ., Raleigh, NC (United States); Chinese Academy of Sciences (CAS), Fuzhou (China); Shandong Univ., Jinan (China)

Read/write operations with individual quantum bits (i.e., qbits) are a demanding concern to solve in quantum computing. To alleviate this difficulty, we considered the possibility of using a group of qbits that act collectively as a bit (hereafter, a group bit or a gbit, in short). A promising candidate for a gbit is a single-domain ferromagnet (SDF) independent of its size, which can be prepared as a magnet of well-separated uniaxial magnetic ions (UMIs) at sites of no electric dipole moment with their uniaxial axes aligned along one common direction. When magnetized, the UMIs of such a magnet have a ferromagnetic (FM) arrangement and the resulting SDF becomes a gbit with its two opposite moment orientations representing the |0⟩ and |1⟩ states of a bit. Here, we probed the requirements for such magnets and identified several 2H-perovskites as materials satisfying these requirements.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)

Sponsoring Organization:: USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1461661

Journal Information:: ChemPhysChem, Vol. 18, Issue 16; ISSN 1439-4235

Publisher:: ChemPubSoc EuropeCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 1 work

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