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Multipulse operation and optical detection of nuclear spin coherence in a GaAs/AlGaAs quantum well
- Source :
- Physical review letters. 101(20)
- Publication Year :
- 2008
-
Abstract
- We demonstrate manipulation of nuclear spin coherence in a GaAs/AlGaAs quantum well by optically detected nuclear magnetic resonance (NMR). A phase shift of the Larmor precession of photoexcited electron spins is detected to read out the hyperfine-coupled nuclear spin polarization. Multipulse NMR sequences are generated to control the population and examine the phase coherence in quadrupolar-split spin-3/2 75 As nuclei. The phase coherence among the multilevel nuclear spin states is addressed by application of pulse sequences that are used in quantum gate operations.
Details
- ISSN :
- 00319007
- Volume :
- 101
- Issue :
- 20
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.doi.dedup.....728ffb236c13d9b08c62cac5562d4a90