scholarly journals Experimental study of retrieval efficiency of Duan-Lukin-Cirac-Zoller quantum memory by optical cavity-enhanced

2022 ◽  
Vol 71 (2) ◽  
pp. 020301-020301
Author(s):  
Ma Teng-fei ◽  
◽  
Wang Min-jie ◽  
Wang Sheng-zhi ◽  
Jiao Hao-le ◽  
...  
Keyword(s):  
Experimental Study ◽  
Optical Cavity ◽  
Quantum Memory ◽  
Retrieval Efficiency

scholarly journals Experimental realization of revival of silenced echo memory protocol in optical cavity

2018 ◽  
Vol 190 ◽  
pp. 03007
Author(s):  
Mansur Minnegaliev ◽  
Konstantin Gerasimov ◽  
Ravil Urmancheev ◽  
Sergey Moiseev
Keyword(s):  
Quantum Efficiency ◽  
Optical Cavity ◽  
Photon Echo ◽  
Quantum Memory ◽  
Optical Pulses ◽  
Experimental Realization ◽  
Light Pulses ◽  
The Rose

We demonstrated a photon echo quantum memory for weak input optical pulses on the ROSE protocol in a Tm3+:Y3Al5O12 crystal placed in impedance-matched optical cavity. The quantum efficiency of 21% for a storage of time of 36 µs was achieved for single light pulses.

scholarly journals Optimizing High-Efficiency Quantum Memory with Quantum Machine Learning for Near-Term Quantum Devices

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Laszlo Gyongyosi ◽  
Sandor Imre
Keyword(s):  
Machine Learning ◽  
Signal To Noise Ratio ◽  
Quantum Memory ◽  
Quantum Computers ◽  
Signal To Noise ◽  
Quantum Devices ◽  
Retrieval Efficiency ◽  
Quantum Machine Learning ◽  
Near Term ◽  
Quantum Internet

AbstractQuantum memories are a fundamental of any global-scale quantum Internet, high-performance quantum networking and near-term quantum computers. A main problem of quantum memories is the low retrieval efficiency of the quantum systems from the quantum registers of the quantum memory. Here, we define a novel quantum memory called high-retrieval-efficiency (HRE) quantum memory for near-term quantum devices. An HRE quantum memory unit integrates local unitary operations on its hardware level for the optimization of the readout procedure and utilizes the advanced techniques of quantum machine learning. We define the integrated unitary operations of an HRE quantum memory, prove the learning procedure, and evaluate the achievable output signal-to-noise ratio values. We prove that the local unitaries of an HRE quantum memory achieve the optimization of the readout procedure in an unsupervised manner without the use of any labeled data or training sequences. We show that the readout procedure of an HRE quantum memory is realized in a completely blind manner without any information about the input quantum system or about the unknown quantum operation of the quantum register. We evaluate the retrieval efficiency of an HRE quantum memory and the output SNR (signal-to-noise ratio). The results are particularly convenient for gate-model quantum computers and the near-term quantum devices of the quantum Internet.

The effect of nonadiabaticity on the efficiency of quantum memory based on an optical cavity

2017 ◽  
Vol 123 (1) ◽  
pp. 83-88 ◽  
Author(s):  
N. G. Veselkova ◽  
I. V. Sokolov
Keyword(s):  
Optical Cavity ◽  
Quantum Memory

Optimizing the storage and retrieval efficiency of a solid-state quantum memory through tailored state preparation

2007 ◽  
Author(s):  
Matthew D. Eisaman ◽  
Sergey Polyakov ◽  
Michael Hohensee ◽  
Jingyun Fan ◽  
Philip Hemmer ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Memory ◽  
State Preparation ◽  
Storage And Retrieval ◽  
Retrieval Efficiency

Quantum Memory with Natural Inhomogeneous Broadening in an Optical Cavity

2013 ◽  
Vol 52 (6) ◽  
pp. 2092-2098 ◽  
Author(s):  
Wei Gao ◽  
Xiao-Dong Tan ◽  
Ming-Feng Wang ◽  
Yi-Zhuang Zheng
Keyword(s):  
Optical Cavity ◽  
Inhomogeneous Broadening ◽  
Quantum Memory
Sign in / Sign up

Export Citation Format

Share Document