472 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Friedrich Schiller University JenaDE67 papers
- B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of UkraineUA19 papers
- Novosibirsk State Technical UniversityRU18 papers
- Helmholtz Institute JenaDE16 papers
- Comenius University BratislavaSK15 papers
- Karlsruhe Institute of TechnologyDE11 papers
- Technische Universität DarmstadtDE10 papers
- Centre National de la Recherche ScientifiqueFR9 papers
- Czech Academy of Sciences, Institute of Scientific InstrumentsCZ9 papers
- National Yang Ming Chiao Tung UniversityTW9 papers
- University of MichiganUS9 papers
- Fraunhofer Institute for Applied Optics and Precision EngineeringDE8 papers
21 papers · 1 filter
Measuring coherent dynamics of a superconducting qubit in an open waveguide
Aidar Sultanov, Evgeniya Mutsenik, Matthias Schmelz +5
We measured the relaxation and decoherence rates of a superconducting transmon qubit in a resonator-free setting. In our experiments, the qubit is coupled to an open coplanar waveg…
Light Storage in Light Cages: A Scalable Platform for Multiplexed Quantum Memories
Esteban Gómez-López, Dominik Ritter, Jisoo Kim +3
Quantum memories are essential for photonic quantum technologies, enabling long-distance quantum communication and serving as delay units in quantum computing. Hot atomic vapors us…
Benchmarking of Fluorescence Lifetime Measurements using Time-Frequency Correlated Photons
Tobias Bernd Gäbler, Nitish Jain, Patrick Then +3
The investigation of fluorescence lifetime became an important tool in biology and medical science. So far, established methods of fluorescence lifetime measurements require the il…
Enhancing entangled two-photon absorption of Nile Red via temperature-controlled SPDC
Aleksa Krstić, Tobias Bernd Gäbler, Nitish Jain +6
Entangled two-photon absorption can enable a linear scaling of fluorescence emission with the excitation power. In comparison to classical two-photon absorption with a quadratic sc…
Stepping closer to pulsed single microwave photon detectors for axions search
A. D'Elia, A. Rettaroli, S. Tocci +23
Axions detection requires the ultimate sensitivity down to the single photon limit. In the microwave region this corresponds to energies in the yJ range. This extreme sensitivity h…
Spatial and temporal characteristics of spontaneous parametric down-conversion with varying focal planes of interacting beams
Richard Bernecker, Baghdasar Baghdasaryan, Stephan Fritzsche
Spontaneous parametric down-conversion (SPDC) is a widely used process to prepare entangled photon pairs. In SPDC, a second-order nonlinear crystal is pumped by a coherent laser be…
Single-atom maser with engineered circuit for population inversion
A. A. Sokolova, G. P. Fedorov, E. V. Il'ichev +1
We present a blueprint for a maser with a single three-level transmon superconducting artificial atom. The system can be pumped coherently via a two-photon process, and to achieve…
Probabilistic motional averaging
D. S. Karpov, V. Y. Monarkha, D. Szombati +6
In a continuous measurement scheme a spin-1/2 particle can be measured and simultaneously driven by an external resonant signal. When the driving is weak, it does not prevent the p…
Controlling the energy gap of a tunable two-level system by ac drive
G. Oelsner, U. Hübner, E. Il'ichev
We study the influence of a strong off-resonant driving signal to the energy levels of a superconducting flux qubit both experimentally and theoretically. In the experiment, we car…
Experimental system design for the integration of trapped-ion and superconducting qubit systems
D. De Motte, A. R. Grounds, M. Rehák +8
We present a design for the experimental integration of ion trapping and superconducting qubit systems as a step towards the realization of a quantum hybrid system. The scheme addr…
Simulating long-distance entanglement in quantum spin chains by superconducting flux qubits
Stefano Zippilli, Miroslav Grajcar, Evgeni Il'ichev +1
We investigate the performance of superconducting flux qubits for the adiabatic quantum simulation of long distance entanglement (LDE), namely a finite ground-state entanglement be…
Toroidal qubits: naturally-decoupled quiet artificial atoms
Alexandre M. Zagoskin, Arkadi Chipouline, Evgeni Il'ichev +2
The requirements of quantum computations impose high demands on the level of qubit protection from perturbations; in particular, from those produced by the environment. Here we pro…
How to test the "quantumness" of a quantum computer?
Alexandre M. Zagoskin, Evgeni Ilichev, Miroslav Grajcar +2
We discuss whether, to what extent and how a quantum computing device can be evaluated and simulated using classical tools.
Quantized resonator field coupled to a current-biased Josephson junction in circuit QED
Christian Kraglund Andersen, Gregor Oelsner, Evgeni Il'ichev +1
A Lagrangian formalism is used to derive the Hamiltonian for a /4 resonator shunted by a current-biased Josephson junction. The eigenstates and the quantum dynamics of the syste…
Electromagnetically induced transparency and Autler-Townes splitting in superconducting flux quantum circuits
Hui-Chen Sun, Yu-xi Liu, J. Q. You +2
We study the microwave absorption of a driven three-level quantum system, which is realized by a superconducting flux quantum circuit (SFQC), with a magnetic driving field applied…
Implementation of a Quantum Metamaterial
Pascal Macha, Gregor Oelsner, Jan-Michael Reiner +7
Manipulating the propagation of electromagnetic waves through sub-wavelength sized artificial structures is the core function of metamaterials. Resonant structures, such as split r…
Frequency Division Multiplexing Readout and Simultaneous Manipulation of an Array of Flux Qubits
Markus Jerger, Stefano Poletto, Pascal Macha +3
An important desired ingredient of superconducting quantum circuits is a readout scheme whose complexity does not increase with the number of qubits involved in the measurement. He…
Heat cost of parametric generation of microwave squeezed states
A. M. Zagoskin, E. Il'ichev, Franco Nori
In parametric systems, squeezed states of radiation can be generated via extra work done by external sources. This eventually increases the entropy of the system despite the fact t…
Nanofiber Fabry-Perot microresonator for non-linear optics and cavity quantum electrodynamics
C. Wuttke, M. Becker, S. Brückner +2
We experimentally realize a Fabry-Perot-type optical microresonator near the cesium D2 line wavelength based on a tapered optical fiber, equipped with two fiber Bragg gratings whic…
Noise-induced quantum coherence and persistent Rabi oscillations in a Josephson flux qubit
A. N. Omelyanchouk, S. Savel'ev, A. M. Zagoskin +2
We demonstrate theoretically the noise-stimulated enhancement of quantum coherence in a superconducting flux qubit. First, an external classical noise can increase the off-diagonal…
Low noise cryogenic system for the measurement of Casimir energy in rigid cavities
Giuseppe Bimonte, Detlef Born, Enrico Calloni +6
We report on preliminary results on the measurement of variations of the Casimir energy in rigid cavities through its influence on the superconducting transition of in-cavity alumi…