6 papers
Macroscopic Quantum Interference of the Center-of-Mass Motion of Levitated Superconducting Microparticles enabled by Magnetic Higher-Order Traps
Jaume Cunill-Subiranas, Fabian Resare, Suocheng Zhao +4
We show how magnetostatic higher-order multipole traps can be used to generate macroscopic quantum interference of the motion of levitated superconducting microparticles. An approp…
Magnetic Omniconversion: Source-Independent Molding of Magnetostatic Fields
Jaume Cunill-Subiranas, Natanael Bort-Soldevila, Fabian Resare +3
Magnetic fields are constrained by the geometry and location of their sources, limiting the ability to freely tailor their spatial distribution. We introduce a general framework to…
Efficient flip-chip and on-chip-based modulation of flux-tunable superconducting resonators
Achintya Paradkar, Paul Nicaise, Karim Dakroury +5
We demonstrate the efficient modulation of flux-tunable superconducting resonators (FTRs) using flip-chip or on-chip-based input coils. The FTRs we use are aluminum-based quarter-w…
Modification of adhesion between microparticles and engineered silicon surfaces
Fabian Resare, Somiya Islam Soke, Witlef Wieczorek
A key challenge in performing experiments with microparticles is controlling their adhesion to substrates. For example, levitation of a microparticle initially resting on a surface…
Superconducting flip-chip devices using indium microspheres on Au-passivated Nb or NbN as under-bump metallization layer
Achintya Paradkar, Paul Nicaise, Karim Dakroury +2
Superconducting flip-chip interconnects are crucial for the three-dimensional integration of superconducting circuits in sensing and quantum technology applications. We demonstrate…
Few-to-many-particle crossover of pair excitations in a superfluid
Fabian Resare, Johannes Hofmann
Motivated by recent advances in the creation of few-body atomic Fermi gases with attractive interactions, we study theoretically the few-to-many-particle crossover of pair excitati…