3.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK625 papers
- Czech Academy of SciencesCZ82 papers
- Masaryk UniversityCZ80 papers
- Centre National de la Recherche ScientifiqueFR78 papers
- Joint Institute for Nuclear ResearchRU74 papers
- University of Pavol Jozef ŠafárikSK62 papers
- Institute of Chemistry of the Slovak Academy of SciencesSK60 papers
- Charles UniversityCZ54 papers
- Comenius University BratislavaSK46 papers
- RIKEN Center for Emergent Matter ScienceJP45 papers
- University of BaselCH43 papers
- Université Paris-SudFR38 papers
11 papers · 2 filters
Incompatibility of quantum instruments
Leevi Leppäjärvi, Michal Sedlák
Quantum instruments describe outcome probability as well as state change induced by measurement of a quantum system. Incompatibility of two instruments, i. e. the impossibility to…
Robustness of optimal probabilistic storage and retrieval of unitary channels to noise
Jaroslav Pavličko, Mário Ziman
We investigate robustness of probabilistic storage and retrieval device optimized for phase gates to noise. We use noisy input composed of convex combination of unitary channel wit…
Quantum key distribution rates from semidefinite programming
Mateus Araújo, Marcus Huber, Miguel Navascués +2
Computing the key rate in quantum key distribution (QKD) protocols is a long standing challenge. Analytical methods are limited to a handful of protocols with highly symmetric meas…
Noise-correlation spectrum for a pair of spin qubits in silicon
J. Yoneda, J. S. Rojas-Arias, P. Stano +5
Semiconductor qubits are appealing for building quantum processors as they may be densely integrated due to small footprint. However, a high density raises the issue of noise corre…
Quantum space, ground space traversal, and how to embed multi-prover interactive proofs into unentanglement
Sevag Gharibian, Dorian Rudolph
Savitch's theorem states that NPSPACE computations can be simulated in PSPACE. We initiate the study of a quantum analogue of NPSPACE, denoted Streaming-QCMASPACE (SQCMASPACE), whe…
Pauli component erasing quantum channels
Jose Alfredo de Leon, Alejandro Fonseca, Francois Leyvraz +2
Decoherence of quantum systems is described by quantum channels. However, a complete understanding of such channels, especially in the multi-particle setting, is still an ongoing d…
Non-local temporal interferometry for highly resilient free-space quantum communication
Lukas Bulla, Matej Pivoluska, Kristian Hjorth +9
Entanglement distribution via photons over long distances enables many applications, including quantum key distribution (QKD), which provides unprecedented privacy. The inevitable…
Quantum dynamics is not strictly bidivisible
David Davalos, Mario Ziman
We address the question of the existence of quantum channels that are divisible in two quantum channels but not in three or, more generally, channels divisible in but not in $n…
Mermin and Svetlichny inequalities for non-projective measurement observables
Mohd Asad Siddiqui, Sk Sazim
The necessary and sufficient criteria for violating the Mermin and Svetlichny inequalities by arbitrary three-qubit states are presented. Several attempts have been made, earlier,…
Isolating noise and amplifying signal with quantum Cheshire cat
Ahana Ghoshal, Soham Sau, Debmalya Das +1
The so-called quantum Cheshire cat is a phenomenon in which an object, identified with a "cat", is dissociated from a property of the object, identified with the "grin" of the cat.…
Free-Fermionic Topological Quantum Sensors
Saubhik Sarkar, Chiranjib Mukhopadhyay, Abhijeet Alase +1
Second order quantum phase transitions, with well-known features such as long-range entanglement, symmetry breaking, and gap closing, exhibit quantum enhancement for sensing at cri…