# Quantum random access memory via quantum walk

@article{Asaka2021QuantumRA, title={Quantum random access memory via quantum walk}, author={Ryo Asaka and Kazumitsu Sakai and Ryoko Yahagi}, journal={Quantum Science \& Technology}, year={2021}, volume={6} }

A novel concept of quantum random access memory (qRAM) employing a quantum walk is provided. Our qRAM relies on a bucket brigade scheme to access the memory cells. Introducing a bucket with chirality left and right as a quantum walker, and considering its quantum motion on a full binary tree, we can efficiently deliver the bucket to the designated memory cells, and fill the bucket with the desired information in the form of quantum superposition states. Our procedure has several advantages…

## 2 Citations

Two-level Quantum Walkers on Directed Graphs I: Universal Quantum Computing

- Physics, Mathematics
- 2021

We propose a universal quantum computation via a fermionic/bosonic multi-particle continuous-time quantum walk with two internal states. A dual-rail encoding is adopted to convert the information: a…

Response to glassy disorder in coin on spread of quantum walker

- Physics
- 2021

We analyze the response to incorporation of glassy disorder in the coin operation of a discrete-time quantum walk in one dimension. We find that the ballistic spread of the disorder-free quantum…

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