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Title: Efficient storage of multidimensional telecom photons in a solid-state quantum memory
Efficient storage of telecom-band quantum optical information represents a crucial milestone for establishing distributed quantum optical networks. Erbium ions in crystalline hosts provide a promising platform for telecom quantum memories; however, their practical applications have been hindered by demanding operational conditions, such as ultra-high magnetic fields and ultra-low temperatures. In this work, we demonstrate the storage of telecom photonic qubits encoded in polarization, frequency, and time-bin bases. Using the atomic frequency comb protocol in an Er3+-doped crystal, we developed a memory initialization scheme that improves storage efficiency by over an order of magnitude. The observed results were made possible by the deliberate selection of the pumping sequence and the minimization of lattice interactions, to the extent possible without the use of dilution refrigerators or superconducting magnets.  more » « less
Award ID(s):
2410054
PAR ID:
10609290
Author(s) / Creator(s):
; ; ;
Publisher / Repository:
Optical Society of America
Date Published:
Journal Name:
Optica Quantum
Volume:
3
Issue:
3
ISSN:
2837-6714
Format(s):
Medium: X Size: Article No. 295
Size(s):
Article No. 295
Sponsoring Org:
National Science Foundation
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