Optical quantum memory based on electro-optically silenced photon echo
- URL: http://arxiv.org/abs/2203.03887v2
- Date: Tue, 14 Jun 2022 10:01:21 GMT
- Title: Optical quantum memory based on electro-optically silenced photon echo
- Authors: Xia-Xia Li, Pai Zhou, Yu-Hui Chen, Xiangdong Zhang
- Abstract summary: Integrated quantum memories are a scalable solution to synchronize a large number of quantum computers.
We propose assigning the memory requirements on coherence property and control property to rare earth ions and lithium niobate crystal.
- Score: 2.480084225009154
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Integrated quantum memories are a scalable solution to synchronize a large
number of quantum computers, which are essential to build a quantum network to
boost their capabilities on information processing. Rather than expecting to
find a specific kind of atoms to meet all the requirements of a good quantum
memory, as other protocols usually do, we propose that assigning the memory
requirements on coherence property and control property to rare earth ions and
lithium niobate crystal, respectively. In particular, optical quantum states
are stored into erbium doped lithium niobate (Er$^{3+}$:LiNbO$_3$) micro-cavity
by utilizing the electro-optic effect of LiNbO$_3$. The Er$^{3+}$:LiNbO$_3$
cavity frequency can be shifted by an external electric field, which is used to
control the photon-echo emission by changing the resonance condition between
micro-cavity and collective atomic excitation. According to calculations, high
efficiency and low noise storage can be achieved. Benefiting from the host
lithium-niobate thin film, such a device can be controlled by on-chip
electrodes and is easy to be integrated with modern photonic devices, paving
way of integrated quantum chips.
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