A chip-based superconducting magnetic trap for levitating superconducting microparticles
Artikel i vetenskaplig tidskrift, 2022

Magnetically-levitated superconducting microparticles have been recently proposed as a promising platform for performing quantum experiments with particles in the picogram regime. Here, we demonstrate the superconducting technology to achieve chip-based magnetic levitation of superconducting microparticles. We simulate and fabricate a chip-based magnetic trap capable of levitating superconducting particles with diameters from 0.5m to 200m. The trap consists of two stacked silicon chips, each patterned with a planar multi-winding superconducting coil made of niobium. The two coils generate a magnetic field resembling a quadrupole near the trap center, in which we demonstrate trapping of a spherical 50m diameter SnPb microparticle at temperatures of 4K and 40mK.

quantum technology

Superconducting magnets

Magnetic levitation

finite element method (FEM)

integrated devices

superconducting coils

Magnetic resonance imaging

magnetic levitation

Electron traps


Magnetic separation

Superconducting coils

superconducting devices


Martí Gutierrez

Chalmers, Mikroteknologi och nanovetenskap, Elektronikmaterial

Achintya Paradkar

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

David Hambraeus

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Gerard Higgins

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Witlef Wieczorek

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

IEEE Transactions on Applied Superconductivity

1051-8223 (ISSN) 15582515 (eISSN)

Vol. 32 4


Annan fysik

Annan elektroteknik och elektronik

Den kondenserade materiens fysik



Mer information

Senast uppdaterat