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Generation of time-domain-multiplexed two-dimensional cluster state.
Warit Asavanant1, Yu Shiozawa1, Shota Yokoyama2
1Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Science (New York, N.Y.)
|October 19, 2019
Summary
Researchers created a large-scale, two-dimensional continuous-variable cluster state, a crucial element for quantum computing. This advancement paves the way for more powerful and fault-tolerant quantum computations using bosonic modes.
Area of Science:
- Quantum Information Science
- Quantum Computing
- Quantum Optics
Background:
- Entanglement is essential for measurement-based quantum computing, stored in cluster states.
- Universal quantum computing demands large-scale, two-dimensional cluster states.
- Previous efforts generated large one-dimensional continuous-variable cluster states but not 2D.
Purpose of the Study:
- To generate a large-scale, two-dimensional continuous-variable cluster state.
- To enable practical implementation of measurement-based quantum computing with bosonic modes.
Main Methods:
- Generation of a 5 by 1240-site square lattice of continuous-variable cluster states.
- Utilized a highly scalable time-multiplexed experimental platform.
- Tailored the lattice structure for experimental compatibility.
Main Results:
- Successfully generated a large-scale two-dimensional continuous-variable cluster state.
- The generated state is compatible with bosonic error-correcting codes.
Conclusions:
- This work demonstrates the feasibility of large-scale 2D cluster states for quantum computing.
- The generated states, with increased squeezing, can enable fault-tolerant quantum computation.
- Advances scalable quantum computing platforms using bosonic modes.
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