Circuit-quantum electrodynamics with direct magnetic coupling to single-atom spin qubits in isotopically enriched {sup 28}Si

Journal Article · Fri Aug 15 00:00:00 EDT 2014 · AIP Advances

DOI:https://doi.org/10.1063/1.4893242· OSTI ID:22299801

Tosi, Guilherme; Mohiyaddin, Fahd A.; Morello, Andrea ^[1]; Huebl, Hans ^[2]

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1. Centre for Quantum Computation and Communication Technology, School of Electrical Engineering and Telecommunications, UNSW Australia, Sydney, New South Wales 2052, Australia. (Australia)
2. Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, D-85748 Garching (Germany)

Recent advances in silicon nanofabrication have allowed the manipulation of spin qubits that are extremely isolated from noise sources, being therefore the semiconductor equivalent of single atoms in vacuum. We investigate the possibility of directly coupling an electron spin qubit to a superconducting resonator magnetic vacuum field. By using resonators modified to increase the vacuum magnetic field at the qubit location, and isotopically purified {sup 28}Si substrates, it is possible to achieve coupling rates faster than the single spin dephasing. This opens up new avenues for circuit-quantum electrodynamics with spins, and provides a pathway for dispersive read-out of spin qubits via superconducting resonators.

• OSTI ID: 22299801
• Journal Information: AIP Advances, Journal Name: AIP Advances Journal Issue: 8 Vol. 4; ISSN AAIDBI; ISSN 2158-3226
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
MAGNETIC FIELDS
NANOSTRUCTURES
QUANTUM ELECTRODYNAMICS
QUBITS
RESONATORS
SILICON
SILICON 28
SPIN
SUBSTRATES