Reducing decoherence in optical and spin transitions in rare-earth-ion doped materials

Abstract

In many important situations the dominant dephasing mechanism in cryogenic rare-earth-ion doped systems is due to magnetic field fluctuations from spins in the host crystal. Operating at a magnetic field where a transition has a zero first-order-Zeeman (ZEFOZ) shift can greatly reduce this dephasing. Here we identify the location of transitions with zero first-order Zeeman shift for optical transitions in Pr3+:YAG and for spin transitions in Er3+:Y2SiO5. The long coherence times that ZEFOZ would enable would make Pr3+:YAG a strong candidate for achieving the strong coupling regime of cavity QED, and would be an important step forward in creating long-lived telecommunications wavelength quantum memories in Er3+:Y2SiO5. This work relies mostly on published spin Hamiltonian parameters but Raman heterodyne spectroscopy was performed on Pr3+:YAG to measure the parameters for the excited state.

10 pages, 5 figures

References in corpus (2)

• Strong coupling cavity QED using rare-earth-ion dopants in monolithic resonators: what you can do with a weak oscillator
• Hyperfine characterization and coherence lifetime extension in Pr3+:La2(WO4)3

Cited by in corpus (36)

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• High Resolution Optical Spectroscopy and Magnetic Properties of Yb3+ in Y2SiO5
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• Protocols for long-distance quantum communication with single ${}^{167}$Er ions
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• The Zeeman and hyperfine interactions of a single ${}^{167}E{r}^{3+}$ ion in Si
• Electromagnetically Induced Transparency in a mono-isotopic ${}^{167}$Er:${}^7$LiYF${}_4$ crystal below 1 Kelvin
• Electromagnetically induced transparency in an isotopically purified Nd${}^{3+}$:YLiF${}_4$ crystal
• Broadband Quantum Memory in Atomic Ensembles
• Proposal for transduction between microwave and optical photons using ${}^{167}\mathrm{Er}$-doped yttrium orthosilicate
• Measurement of the Thulium Ion Spin Hamiltonian Within a Yttrium Gallium Garnet Host Crystal
• Qubit guidelines for solid-state spin defects
• Hybrid Quantum Repeaters with Ensemble-based Quantum Memories and Single-spin Photon Transducers
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• Broadband electron paramagnetic resonance spectroscopy of ${}^{167}$Er:${}^7$LiYF${}_4$ at mK temperatures
• Biexponential decay and ultralong coherence of a single qubit
• Hyperfine interaction and coherence time of praseodymium ions at the site 2 in yttrium orthosilicate
• Implementation of Finite state logic machines via the dynamics of atomic systems
• Enhancement of optical coherence in ${}^{167}$Er:Y${}_2$SiO${}_5$ crystal at sub-Kelvin temperatures
• Exploration of optimal hyperfine transitions for spin-wave storage in ${}^{167}$Er${}^{3+}$:Y${}_2$SiO${}_5$
• Identifying optimal magnetic field configurations for decoherence mitigation of boron vacancies in hexagonal boron nitride
• Nuclear quadrupole interaction and zero first-order Zeeman transitions of ${}^{167}$Er${}^{3+}$ in CaWO${}_4$
• Experimental setup for the combined study of spin ensembles and superconducting quantum circuits