Monday, October 3, 2022

Researchers introduce method that can be used to achieve high-level control over phononic waveguides

Researchers introduce method that can be used to achieve high-level control over phononic waveguides
Image credit: Jurik Peter / Shutterstock

Most quantum computing technologies rely on efficiency in producing, manipulating, and observing non-classical states of light. Non-classical states are quantum states that cannot be directly generated through conventional sources of light, such as lamps and lasers. Therefore, they cannot be described by the theory of classical electromagnetism.

These distinct states include squeezed states, entangled states, and states with negative Wigner functions. The ability to uniformly control the conditions of acoustic systems, referring to acoustics and vibration, may open up attractive possibilities for improving new quantum technologies involving quantum sensing and devices for quantum information processing.

Researchers at the Kavli Institute of Nanoscience, Delft University of Technology (TU Delft), have recently introduced a method that can be used to achieve a high degree of control over phononic waveguides. This method, outlined in a paper published in Nature Physics, could facilitate phononic waveguides in quantum technology, similar to how optical fibers and waveguides are used today.

Optical fibers and waveguides can transmit quantum information encoded in optical photons. Over the past decades, they have been essential components of quantum and sophisticated communication technology.

The main objective of recent work by Groblacher and colleagues was to design a method for regulating non-classical mechanical states in a phononic waveguide with individual phonons in a suspended silicon microstructure. They aim to eventually introduce a new toolbox to investigate in the field of quantum acoustics, which will eventually allow physicists and engineers to interact with quantum systems in a variety of ways.

Nation World News Desk
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