86 citations · 251 across the 12 of their papers we have counts for
12 papers
Experimental observation of multimode quantum phase transitions in a superconducting Bose-Hubbard simulator
Claudia Castillo-Moreno, Théo Sépulcre, Timo Hillmann +3
The study of phase transitions and critical phenomena arising in quantum driven-dissipative systems, and whether a correspondence can be drawn to their equilibrium counterparts, is…
Dynamical excitation control and multimode emission of an atom-photon bound state
Claudia Castillo-Moreno, Kazi Rafsanjani Amin, Ingrid Strandberg +3
Atom-photon bound states arise from the coupling of quantum emitters to the band edge of dispersion-engineered waveguides. Thanks to their tunable-range interactions, they are prom…
Direct detection of quasiparticle tunneling with a charge-sensitive superconducting sensor coupled to a waveguide
Kazi Rafsanjani Amin, Axel M. Eriksson, Mikael Kervinen +3
Detecting quasiparticle tunneling events in superconducting circuits provides information about the population and dynamics of non-equilibrium quasiparticles. Such events can be de…
Digital homodyne and heterodyne detection for stationary bosonic modes
Ingrid Strandberg, Axel Eriksson, Baptiste Royer +2
Homo- and heterodyne detection are fundamental techniques for measuring propagating electromagnetic fields. However, applying these techniques to stationary fields confined in cavi…
Universal control of a bosonic mode via drive-activated native cubic interactions
Axel M. Eriksson, Théo Sépulcre, Mikael Kervinen +9
Linear bosonic modes offer a hardware-efficient alternative for quantum information processing but require access to some nonlinearity for universal control. The lack of nonlineari…
Quantum process tomography of continuous-variable gates using coherent states
Mikael Kervinen, Shahnawaz Ahmed, Marina Kudra +5
Encoding quantum information into superpositions of multiple Fock states of a harmonic oscillator can provide protection against errors, but it comes with the cost of requiring mor…
Experimental realization of deterministic and selective photon addition in a bosonic mode assisted by an ancillary qubit
Marina Kudra, Martin Jirlow, Mikael Kervinen +5
Bosonic quantum error correcting codes are primarily designed to protect against single-photon loss. To correct for this type of error, one can encode the logical qubit in code spa…
Robust preparation of Wigner-negative states with optimized SNAP-displacement sequences
Marina Kudra, Mikael Kervinen, Ingrid Strandberg +13
Hosting non-classical states of light in three-dimensional microwave cavities has emerged as a promising paradigm for continuous-variable quantum information processing. Here we ex…
Multiphonon transitions in a quantum electromechanical system
Alpo Välimaa, Wayne Crump, Mikael Kervinen +1
We investigate a superconducting qubit coupled to a quantum acoustic system in a near resonant configuration. In our system we measure multiphonon transitions, whose spectrum revea…
Sideband control of a multimode quantum bulk acoustic system
Mikael Kervinen, Alpo Välimaa, Jhon E. Ramírez-Muñoz +1
Multimode bulk acoustic systems show promise for use in superconducting quantum computation. They can serve as a medium term memory storage, with exceptional coherence times demons…
Landau-Zener-Stückelberg interference in a multimode electromechanical system in the quantum regime
Mikael Kervinen, Jhon E. Ramírez-Muñoz, Alpo Välimaa +1
The studies of mechanical resonators in the quantum regime not only provide insight into the fundamental nature of quantum mechanics of massive objects, but also introduce promisin…
Interfacing planar superconducting qubits with high overtone bulk acoustic phonons
Mikael Kervinen, Ilkka Rissanen, Mika Sillanpaa
Mechanical resonators are a promising way for interfacing qubits in order to realize hybrid quantum systems that offer great possibilities for applications. Mechanical systems can…