Featured
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Topological lattices realized in superconducting circuit optomechanics
Optomechanical lattices in one and two dimensions with exceptionally low disorder are realized, showing how the optomechanical interaction can be exploited for direct measurements of the Hamiltonian, beyond the tight-binding approximation.
- Amir Youssefi
- , Shingo Kono
- & Tobias J. Kippenberg
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Quantum state preparation and tomography of entangled mechanical resonators
Piezoelectric coupling of a single superconducting qubit to two phononic crystal nanoresonators results in an integrated device that is able to control and read out the quantum state of the two mechanical resonators.
- E. Alex Wollack
- , Agnetta Y. Cleland
- & Amir H. Safavi-Naeini
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Article |
Electronically integrated, mass-manufactured, microscopic robots
A new class of voltage-controllable electrochemical actuators that are compatible with silicon processing are used to produce over one million sub-hundred-micrometre walking robots on a single four-inch wafer.
- Marc Z. Miskin
- , Alejandro J. Cortese
- & Itai Cohen
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Letter |
Resolving the energy levels of a nanomechanical oscillator
A hybrid platform comprising a microwave superconducting qubit and a nanomechanical piezoelectric oscillator is used to resolve the phonon number states of the oscillator.
- Patricio Arrangoiz-Arriola
- , E. Alex Wollack
- & Amir H. Safavi-Naeini
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Letter |
Experimental realization of on-chip topological nanoelectromechanical metamaterials
Topological nanoelectromechanical metamaterials are realized at the micrometre scale, using silicon nitride nanomembranes, opening the way for on-chip integrated acoustic components in high-frequency signal-processing applications.
- Jinwoong Cha
- , Kun Woo Kim
- & Chiara Daraio
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Perspective |
Structural superlubricity and ultralow friction across the length scales
The phenomenon of ultralow friction between sliding incommensurate crystal surfaces—structural superlubricity—is examined, and the challenges and opportunities involved in its extension to the macroscale are assessed.
- Oded Hod
- , Ernst Meyer
- & Michael Urbakh
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Article |
Measurement-based quantum control of mechanical motion
The displacement of a mechanical resonator is measured to within 35% of the Heisenberg uncertainty limit, enabling feedback cooling to the quantum ground state, nine decibels below the quantum-backaction limit.
- Massimiliano Rossi
- , David Mason
- & Albert Schliesser
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Letter |
Measurement-based control of a mechanical oscillator at its thermal decoherence rate
A position sensor is demonstrated that is capable of resolving the zero-point motion of a nanomechanical oscillator in the timescale of its thermal decoherence; it achieves an imprecision that is four orders of magnitude below that at the standard quantum limit and is used to feedback-cool the oscillator to a mean photon number of five.
- D. J. Wilson
- , V. Sudhir
- & T. J. Kippenberg
Optomechanical realization of the bosonic Kitaev chain