Details
| Original language | English |
|---|---|
| Article number | 067601 |
| Journal | Physical review letters |
| Volume | 110 |
| Issue number | 6 |
| Publication status | Published - 4 Feb 2013 |
| Externally published | Yes |
Abstract
We propose and analyze a technique to collectively enhance interactions between solid-state quantum registers composed from random networks of spin qubits. In such systems, disordered dipolar interactions generically result in localization. Here, we demonstrate the emergence of a single collective delocalized eigenmode as one turns on a transverse magnetic field. The interaction strength between this symmetric collective mode and a remote spin qubit is enhanced by the square root of the number of spins participating in the delocalized mode. Mediated by such collective enhancement, long-range quantum logic between remote spin registers can occur at distances consistent with optical addressing. A specific implementation utilizing nitrogen-vacancy defects in diamond is discussed and the effects of decoherence are considered.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: Physical review letters, Vol. 110, No. 6, 067601, 04.02.2013.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Collectively Enhanced Interactions in Solid-State Spin Qubits
AU - Weimer, Hendrik
AU - Yao, Norman Y.
AU - Lukin, Mikhail D.
PY - 2013/2/4
Y1 - 2013/2/4
N2 - We propose and analyze a technique to collectively enhance interactions between solid-state quantum registers composed from random networks of spin qubits. In such systems, disordered dipolar interactions generically result in localization. Here, we demonstrate the emergence of a single collective delocalized eigenmode as one turns on a transverse magnetic field. The interaction strength between this symmetric collective mode and a remote spin qubit is enhanced by the square root of the number of spins participating in the delocalized mode. Mediated by such collective enhancement, long-range quantum logic between remote spin registers can occur at distances consistent with optical addressing. A specific implementation utilizing nitrogen-vacancy defects in diamond is discussed and the effects of decoherence are considered.
AB - We propose and analyze a technique to collectively enhance interactions between solid-state quantum registers composed from random networks of spin qubits. In such systems, disordered dipolar interactions generically result in localization. Here, we demonstrate the emergence of a single collective delocalized eigenmode as one turns on a transverse magnetic field. The interaction strength between this symmetric collective mode and a remote spin qubit is enhanced by the square root of the number of spins participating in the delocalized mode. Mediated by such collective enhancement, long-range quantum logic between remote spin registers can occur at distances consistent with optical addressing. A specific implementation utilizing nitrogen-vacancy defects in diamond is discussed and the effects of decoherence are considered.
UR - http://www.scopus.com/inward/record.url?scp=84873326271&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.110.067601
DO - 10.1103/PhysRevLett.110.067601
M3 - Article
AN - SCOPUS:84873326271
VL - 110
JO - Physical review letters
JF - Physical review letters
SN - 0031-9007
IS - 6
M1 - 067601
ER -