51 citations · 121 across the 6 of their papers we have counts for
6 papers
Ancilla-Error-Transparent Controlled Beam Splitter Gate
Iivari Pietikäinen, Ondřej Černotík, Shruti Puri +2
In hybrid circuit QED architectures containing both ancilla qubits and bosonic modes, a controlled beam splitter gate is a powerful resource. It can be used to create (up to a cont…
Swap-test interferometry with biased ancilla noise
Ondřej Černotík, Iivari Pietikäinen, Shruti Puri +2
The Mach--Zehnder interferometer is a powerful device for detecting small phase shifts between two light beams. Simple input states -- such as coherent states or single photons --…
Combining Floquet and Lyapunov techniques for time-dependent problems in optomechanics and electromechanics
Iivari Pietikäinen, Ondřej Černotík, Radim Filip
Cavity optomechanics and electromechanics form an established field of research investigating the interactions between electromagnetic fields and the motion of quantum mechanical r…
Photon blockade and the quantum-to-classical transition in the driven-dissipative Josephson pendulum coupled to a resonator
I. Pietikäinen, J. Tuorila, D. S. Golubev +1
We investigate the driven quantum phase transition between the oscillating motion and the classical nearly free rotations of the Josephson pendulum coupled to a harmonic oscillator…
Multilevel effects in a driven generalized Rabi model
I. Pietikäinen, S. Danilin, K. S. Kumar +2
We study numerically the onset of higher-level excitations and resonance frequency shifts in the generalized multilevel Rabi model with dispersive coupling under strong driving. Th…
Observation of the Bloch-Siegert shift in a driven quantum-to-classical transition
I. Pietikäinen, S. Danilin, K. S. Kumar +4
We show that the counter-rotating terms of the dispersive qubit-cavity Rabi model can produce relatively large and nonmonotonic Bloch-Siegert shifts in the cavity frequency as the…