Tm${}^{3+}$:Y${}_3$Ga${}_5$O${}_{12}$ materials for spectrally multiplexed quantum memories

Abstract

We investigate the relevant spectroscopic properties of the 795 nm ${}^3$H${}_6$$\leftrightarrow$${}^3$H${}_4$ transition in 1% Tm${}^{3+}$:Y${}_3$Ga${}_5$O${}_{12}$ at temperatures as low as 1.2 K for optical quantum memories based on persistent spectral tailoring of narrow absorption features. Our measurements reveal that this transition has uniform coherence properties over a 56 GHz bandwidth, and a simple hyperfine structure split by $\pm$44 MHz/T with lifetimes of up to hours. Furthermore, we find a ${}^3$F${}_4$ population lifetime of 64 ms -- one of the longest lifetimes observed for an electronic level in a solid --, and an exceptionally long coherence lifetime of 490 $\mu$s -- the longest ever observed for optical transitions of Tm${}^{3+}$ ions in a crystal. Our results suggest that this material allows realizing broadband quantum memories that enable spectrally multiplexed quantum repeaters.

arXiv comment5 pages, 3 figures

References in corpus (17)

• Multimode quantum memory based on atomic frequency combs
• Broadband waveguide quantum memory for entangled photons
• Quantum Storage of Photonic Entanglement in a Crystal
• A solid state light-matter interface at the single photon level
• Spectral multiplexing for scalable quantum photonics using an atomic frequency comb quantum memory and feed-forward control
• Prospective applications of optical quantum memories
• Demonstration of atomic frequency comb memory for light with spin-wave storage
• Impedance-matched cavity quantum memory
• Telecommunication-wavelength solid-state memory at the single photon level
• Efficient quantum memory using a weakly absorbing sample
• Cavity-enhanced storage in an optical spin-wave memory
• Efficient multi-mode quantum memory based on photon echo in optimal QED cavity
• Quantum Storage of Heralded Single Photons in a Praseodymium Doped Crystal
• Efficiency optimization for Atomic Frequency Comb storage
• Spectroscopic investigations of a Ti:Tm:LiNbO3 waveguide for photon-echo quantum memory
• State Preparation by Optical Pumping in Erbium Doped Solids using Stimulated Emission and Spin Mixing
• Two-photon interference of weak coherent laser pulses recalled from separate solid-state quantum memories

Cited by in corpus (16)

• Towards highly multimode optical quantum memory for quantum repeaters
• Remote distribution of non-classical correlations over 1250 modes between a telecom photon and a ${}^{171}$Yb${}^{3+}$:Y${}_2$SiO${}_5$ crystal
• Practical Quantum Repeaters with Parametric Down-Conversion Sources
• Multiplexed on-demand storage of polarization qubits in a crystal
• A long-lived solid-state optical quantum memory for high-rate quantum repeaters
• Improved Light-Matter Interaction for Storage of Quantum States of Light in a Thulium-Doped Crystal Cavity
• Entanglement and non-locality between disparate solid-state quantum memories mediated by photons
• Optical decoherence studies of Tm${}^{3+}$:Y${}_3$Ga${}_5$O${}_{12}$
• Modification of phonon processes in nanostructured rare-earth-ion-doped crystals
• Qubit teleportation between a memory-compatible photonic time-bin qubit and a solid-state quantum network node
• Broadband Quantum Memory in Atomic Ensembles
• Strain-mediated ion-ion interaction in rare-earth-doped solids
• Measurement of the Thulium Ion Spin Hamiltonian Within a Yttrium Gallium Garnet Host Crystal
• Quadratic Zeeman Spectral Diffusion of Thulium Ion Population in a Yttrium Gallium Garnet Crystal
• Efficient Pumping of Spectral Holes in a Tm${}^{3+}$: YAG Crystal for Broadband Quantum Optical Storage
• Limits to the sensitivity of a rare-earth-enabled cryogenic vibration sensor