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Researchers have demonstrated that nanoelectromechanical systems (NEMS) can exhibit intrinsic quantum behavior through material nonlinearity, eliminating the need for external superconducting qubits. By harnessing atomic-scale defects as two-level systems, this approach simplifies the architecture for compact quantum sensors and qubits while enabling single-phonon sensitivity. This breakthrough offers a more scalable pathway for integrating quantum sensing capabilities directly into standard material platforms.

Surse care acoperăQuantum Zeitgeist, arXiv

NEMS Device Exhibits Quantum Behavior Through Material Properties Alone

Quantum Zeitgeist24 mai 20265 min de cititArticolul și perspectiva sunt în engleză.

Researchers built nanoelectromechanical systems, or NEMS, that demonstrate quantum behavior of phonons via material properties alone.

Physicists at Caltech and Stanford University have engineered nanoelectromechanical systems (NEMS) capable of exhibiting quantum behavior through the intrinsic properties of their materials, a feat previously requiring an external quantum device like a superconducting qubit. This advancement simplifies the design of compact quantum sensors and qubits, opening new avenues for quantum computing and biophysics. The team achieved this by creating nonlinearity within the NEMS device; evenly spaced energy levels in linear systems hinder the ability to determine a system’s state. “You don’t want linear systems for quantum applications, because then you can’t tell what state the…

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