Related papers: Optical Investigations of Coherence and Relaxation Dynamics of a Thulium-doped Yttrium Gallium Garnet Crystal at sub-Kelvin Temperatures for Optical Quantum Memory

Optical Investigations of Coherence and Relaxation Dynamics of a Thulium-doped Yttrium Gallium Garnet Crystal at sub-Kelvin Temperatures for Optical Quantum Memory

URL: http://arxiv.org/abs/2406.08167v1
Date: Wed, 12 Jun 2024 12:56:19 GMT
Title: Optical Investigations of Coherence and Relaxation Dynamics of a Thulium-doped Yttrium Gallium Garnet Crystal at sub-Kelvin Temperatures for Optical Quantum Memory
Authors: Antariksha Das, Mohsen Falamarzi Askarani, Jacob H. Davidson, Neil Sinclair, Joshua A. Slater, Sara Marzban, Daniel Oblak, Charles W. Thiel, Rufus L. Cone, Wolfgang Tittel,
Abstract summary: We report measurements of optical coherence and energy-level lifetimes of yttrium gallium garnet (Tm:YGG) Our results suggest Tm:YGG to be promising for multiplexed photonic quantum memory for quantum repeaters.
Score: 0.0
License: http://creativecommons.org/licenses/by/4.0/
Abstract: Rare-earth ion-doped crystals are of great interest for quantum memories, a central component in future quantum repeaters. To assess the promise of 1$\%$ Tm$^{3+}$-doped yttrium gallium garnet (Tm:YGG), we report measurements of optical coherence and energy-level lifetimes of its $^3$H$_6$ $\leftrightarrow$ $^3$H$_4$ transition at a temperature of around 500 mK and various magnetic fields. Using spectral hole burning, we find hyperfine ground-level (Zeeman level) lifetimes of several minutes at magnetic fields of less than 1000 G. We also measure coherence time exceeding one millisecond using two-pulse photon echoes. Three-pulse photon echo and spectral hole burning measurements reveal that due to spectral diffusion, the effective coherence time reduces to a few $\mu$s over a timescale of around two hundred seconds. Finally, temporal and frequency-multiplexed storage of optical pulses using the atomic frequency comb protocol is demonstrated. Our results suggest Tm:YGG to be promising for multiplexed photonic quantum memory for quantum repeaters.

Related papers

Multiplexed quantum repeaters with hot multimode alkali-noble gas memories [49.702453308263266]
We propose a non-cryogenic optical quantum memory for noble-gas nuclear spins based on the Atomic Frequency Comb protocol. We propose a ground-based quantum repeater that enables entanglement distribution over distances up to $2300 mathrmkm$ with only $8$ elementary links.
arXiv Detail & Related papers (2024-02-27T18:39:15Z)
Coherent optical-microwave interface for manipulation of low-field electronic clock transitions in $^{171}$Yb$^{3+}$:Y$_2$SiO$_5$ [0.0]
coherent interaction of solid-state spins with both optical and microwave fields provides a platform for quantum technologies. We use a loop-gap microwave resonator to coherently drive optical and microwave clock transitions over a long crystal. We provide new insights into the spin dephasing mechanism at very low fields, showing that superhyperfine-induced collapse of the Hahn echo signal plays an important role at low fields.
arXiv Detail & Related papers (2022-09-09T09:19:28Z)
Quantum-limited millimeter wave to optical transduction [50.663540427505616]
Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
arXiv Detail & Related papers (2022-07-20T18:04:26Z)
Time-correlated Photons from a In$_{0.5}$Ga$_{0.5}$P Photonic Crystal Cavity on a Silicon Chip [55.41644538483948]
Time-correlated photon pairs are generated by triply-resonant Four-Wave-Mixing in a In$_0.5$Ga$_0.5$P Photonic Crystal cavitiy. The generation rate reaches 5 MHz in cavities with Q-factor $approx 4times 104$, more than one order of magnitude larger than what is measured using ring resonators with similar Q factors fabricated on the same chip.
arXiv Detail & Related papers (2022-02-19T15:22:06Z)
Rapid generation of all-optical $^{39}$K Bose-Einstein condensates using a low-field Feshbach resonance [58.720142291102135]
We investigate the production of all-optical $39$K Bose-Einstein condensates with different scattering lengths using a Feshbach resonance near $33$ G. We are able to produce fully condensed ensembles with $5.8times104$ atoms within $850$ ms evaporation time at a scattering length of $232. Based on our findings we describe routes towards high-flux sources of ultra-cold potassium for inertial sensing.
arXiv Detail & Related papers (2022-01-12T16:39:32Z)
Storage of photonic time-bin qubits for up to 20 ms in a rare-earth doped crystal [0.0]
Long-duration quantum memories for photonic qubits are essential components for achieving long-distance quantum networks and repeaters. In this work, we apply dynamical decoupling techniques and a small magnetic field to achieve the storage of six temporal modes for 20, 50 and 100 ms in a crystal. The quantum coherence of the memory is verified by storing two time-bin qubits for 20 ms, with an average memory output fidelity of $F=(85pm 2)%$ for an average number of photons per qubit of $mu_textin$ = 0.92$pm$0.04
arXiv Detail & Related papers (2021-09-14T13:18:00Z)
Entanglement between a telecom photon and an on-demand multimode solid-state quantum memory [52.77024349608834]
We show the first demonstration of entanglement between a telecom photon and a collective spin excitation in a multimode solid-state quantum memory. We extend the entanglement storage in the quantum memory for up to 47.7$mu$s, which could allow for the distribution of entanglement between quantum nodes separated by distances of up to 10 km.
arXiv Detail & Related papers (2021-06-09T13:59:26Z)
A long-lived solid-state optical quantum memory for high-rate quantum repeaters [0.0]
We show that the optical coherence time can reach 1.1 ms, and, using laser pulses, we demonstrate optical storage based on the atomic frequency comb protocol up to 100 $mu$s. Our results show the potential of Tm:YGG for creating quantum memories with long optical storage times, and open the path to building extended quantum networks.
arXiv Detail & Related papers (2021-06-04T14:56:34Z)
A Frequency-Multiplexed Coherent Electro-Optic Memory in Rare Earth Doped Nanoparticles [94.37521840642141]
Quantum memories for light are essential components in quantum technologies like long-distance quantum communication and distributed quantum computing. Recent studies have shown that long optical and spin coherence lifetimes can be observed in rare earth doped nanoparticles. We report on coherent light storage in Eu$3+$:Y$$O$_3$ nanoparticles using the Stark Echo Modulation Memory (SEMM) quantum protocol.
arXiv Detail & Related papers (2020-06-17T13:25:54Z)

This list is automatically generated from the titles and abstracts of the papers in this site.