Nanomechanics and Symmetry in Quantum Signal Processing—Theory and Application
A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Physics".
Deadline for manuscript submissions: 28 February 2026 | Viewed by 16
Special Issue Editor
Interests: condensed matter physics
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
Nanomechanics—the mechanical motion at the nanoscale—provides unique features such as extremely high quality factors and small form factors, creating novel possibilities for its use as a critical component in the development of quantum signal processing technologies. In particular, nanoelectromechanical systems (NEMSs), which couple quantised states of nanomechanical motion with electromagnetic degrees of freedom, play a central role in advanced hybrid quantum systems. These systems couple nanomechanical resonators to electrical circuits or light, enabling high-precision control, readout, and manipulation of quantum states at mesoscopic scales in variety of experimental setups. Theoretical models covering nanomechanics in quantum regimes span from vibrating superconducting resonators and qubits, quantised mechanical vibrations, cat states, quantum optomechanics, or cavity quantum electrodynamics. Their purpose is to find a bridge between otherwise incompatible quantum systems, such as superconducting qubits and phonons or photons. They can do this by contributing to being an essential step towards building scalable quantum networks by utilising the quantum entanglement and symmetry properties to transduce encoded quantum signal between different degrees of freedom and preserve its content. In practice, NEMS devices are engineered to operate at cryogenic temperatures and are precisely tuned via voltage biasing or microwave pumping, providing a versatile and scalable interface for quantum signal processing by enabling strong, tuneable interactions between mechanical and electromagnetic modes. They have the potential to form the backbone of hybrid quantum architectures, supporting applications in quantum computation, secure communication, and quantum sensing.
This Special Issue of Symmetry will focus on selected topics concerning the interplay between nanomechanics, symmetry, and quantum mechanics in hybrid condensed-matter systems. In addition to contributions on the aforementioned topic, we welcome short reviews and original research papers covering their mathematical models and experimental realisations as well as novel aspects addressing topological computing, anyons, topological spintronics, and novel symmetry- and topology-related phenomena.
Prof. Dr. Danko Radic
Guest Editor
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Keywords
- nanomechanics
- nanoelectromechanical systems (NEMSs)
- quantum optomechanics
- cavity quantum electrodynamics
- cat states
- quantum information
- quantum networks
- quantum sensing
- quantum error correction
- quantum entanglement
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