1.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Université Paris-SaclayFR309 papers
- University of GlasgowGB306 papers
- European Organization for Nuclear ResearchCH302 papers
- University of WarwickGB302 papers
- Centre National de la Recherche ScientifiqueFR300 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT300 papers
- Heidelberg UniversityDE299 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT299 papers
- University of CambridgeGB299 papers
- University of ManchesterGB299 papers
- Rutherford Appleton LaboratoryGB298 papers
- University of OxfordGB296 papers
16 papers · 2 filters
Photon transport in a Bose-Hubbard chain of superconducting artificial atoms
G. P. Fedorov, S. V. Remizov, D. S. Shapiro +8
We demonstrate non-equilibrium steady-state photon transport through a chain of five coupled artificial atoms simulating the driven-dissipative Bose-Hubbard model. Using transmissi…
Quantum Sensors for Microscopic Tunneling Systems
Alexander Bilmes, Serhii Volosheniuk, Jan D. Brehm +2
The anomalous low-temperature properties of glasses arise from intrinsic excitable entities, so-called tunneling Two-Level-Systems (TLS), whose microscopic nature has been baffling…
Minimizing the discrimination time for quantum states of an artificial atom
Ivan Takmakov, Patrick Winkel, Farshad Foroughi +9
Fast discrimination between quantum states of superconducting artificial atoms is an important ingredient for quantum information processing. In circuit quantum electrodynamics, in…
Direct phase modulation via optical injection: theoretical study
Roman Shakhovoy, Marius Puplauskis, Violetta Sharoglazova +4
Direct phase modulation via optical injection is a newly developed method for coding the phase of a gain-switched laser, which meets high requirements placed on transmitters for qu…
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…
Quantum non-demolition dispersive readout of a superconducting artificial atom using large photon numbers
Daria Gusenkova, Martin Spiecker, Richard Gebauer +13
Reading out the state of superconducting artificial atoms typically relies on dispersive coupling to a readout resonator. For a given system noise temperature, increasing the circu…
Transport of pseudothermal photons through an anharmonic cavity
Dmitriy S. Shapiro
Under nonequilibrium conditions, quantum optical systems reveal unusual properties that might be distinct from those in condensed matter. The fundamental reason is that photonic ei…
Blind information reconciliation with polar codes for quantum key distribution
E. O. Kiktenko, A. O. Malyshev, A. K. Fedorov
We suggest a new protocol for the information reconciliation stage of quantum key distribution based on polar codes. The suggested approach is based on the blind technique, which i…
A low-noise single-photon detector for long-distance free-space quantum communication
Elena Anisimova, Dmitri Nikulov, Simeng Simone Hu +5
We build and test a single-photon detector based on a Si avalanche photodiode Excelitas 30902SH thermoelectrically cooled to -100 deg. C. Our detector has dark count rate below 1 H…
Demonstration of an All-Microwave Controlled-Phase Gate between Far Detuned Qubits
S. Krinner, P. Kurpiers, B. Royer +6
A challenge in building large-scale superconducting quantum processors is to find the right balance between coherence, qubit addressability, qubit-qubit coupling strength, circuit…
Coherent superconducting qubits from a subtractive junction fabrication process
Alexander Stehli, Jan David Brehm, Tim Wolz +6
Josephson tunnel junctions are the centerpiece of almost any superconducting electronic circuit, including qubits. Typically, the junctions for qubits are fabricated using shadow e…
Waveguide Bandgap Engineering with an Array of Superconducting Qubits
Jan David Brehm, Alexander N. Poddubny, Alexander Stehli +3
Waveguide quantum electrodynamics offers a wide range of possibilities to effectively engineer interactions between artificial atoms via a one-dimensional open waveguide. While the…
Overcoming detection loss and noise in squeezing-based optical sensing
Gaetano Frascella, Sascha Agne, Farid Ya. Khalili +1
Among the known resources of quantum metrology, one of the most practical and efficient is squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic…
Security of quantum key distribution with detection-efficiency mismatch in the multiphoton case
Anton Trushechkin
Detection-efficiency mismatch is a common problem in practical quantum key distribution (QKD) systems. Current security proofs of QKD with detection-efficiency mismatch rely either…
Independent quality assessment of a commercial quantum random number generator
Mikhail Petrov, Igor Radchenko, Damian Steiger +3
We reverse-engineer, test and analyse hardware and firmware of the commercial quantum-optical random number generator Quantis from ID Quantique. We show that > 99% of its output da…
Spectral Magnetization Ratchets with Discrete Time Quantum Walks
A. Mallick, M. V. Fistul, P. Kaczynska +1
We predict and theoretically study in detail the ratchet effect for the spectral magnetization of periodic discrete time quantum walks (DTQWs) --- a repetition of a sequence of …