6.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR493 papers
- National Institute for AstrophysicsIT482 papers
- Instituto de Astrofísica de CanariasES462 papers
- Aalto UniversityFI432 papers
- University of PaduaIT407 papers
- Universidad de La LagunaES383 papers
- California Institute of TechnologyUS356 papers
- Stockholm UniversitySE351 papers
- Turku Centre for Computer ScienceFI349 papers
- Institute of Space SciencesES329 papers
- European Southern ObservatoryCL317 papers
- Osservatorio Astronomico di PadovaIT317 papers
25 papers · 2 filters
Amount of quantum coherence needed for measurement incompatibility
Jukka Kiukas, Daniel McNulty, Juha-Pekka Pellonpää
A pair of quantum observables diagonal in the same "incoherent" basis can be measured jointly, so some coherence is obviously required for measurement incompatibility. Here we firs…
Post-processing of quantum instruments
Leevi Leppäjärvi, Michal Sedlák
Studying sequential measurements is of the utmost importance to both the foundational aspects of quantum theory and the practical implementations of quantum technologies, with both…
An operational characterization of infinite-dimensional quantum resources
Erkka Haapasalo, Tristan Kraft, Juha-Pekka Pellonpää +1
Recently, various non-classical properties of quantum states and channels have been characterized through an advantage they provide in specific quantum information tasks over their…
Stochastic collision model approach to transport phenomena in quantum networks
Diana A. Chisholm, Guillermo García-Pérez, Matteo A. C. Rossi +2
Noise-assisted transport phenomena highlight the nontrivial interplay between environmental effects and quantum coherence in achieving maximal efficiency. Due to the complexity of…
Collision models can efficiently simulate any multipartite Markovian quantum dynamics
Marco Cattaneo, Gabriele De Chiara, Sabrina Maniscalco +2
We introduce the multipartite collision model, defined in terms of elementary interactions between subsystems and ancillae, and show that it can simulate the Markovian dynamics of…
Quantum measurement incompatibility in subspaces
Roope Uola, Tristan Kraft, Sébastien Designolle +5
We consider the question of characterising the incompatibility of sets of high-dimensional quantum measurements. We introduce the concept of measurement incompatibility in subspace…
Optimal covariant quantum measurements
Erkka Haapasalo, Juha-Pekka Pellonpää
We discuss symmetric quantum measurements and the associated covariant observables modelled, respectively, as instruments and positive-operator-valued measures. The emphasis of thi…
Finite-time quantum Stirling heat engine
Sina Hamedani Raja, Sabrina Maniscalco, Gheorghe-Sorin Paraoanu +2
We study the thermodynamic performance of the finite-time non-regenerative Stirling cycle used as a quantum heat engine. We consider specifically the case in which the working subs…
How to design quantum-jump trajectories via distinct master equation representations
Dariusz Chruściński, Kimmo Luoma, Jyrki Piilo +1
Every open-system dynamics can be associated to infinitely many stochastic pictures, called unravelings, which have proved to be extremely useful in several contexts, both from the…
Quantum memory enhanced dissipative entanglement creation in non-equilibrium steady states
Daniel Heineken, Konstantin Beyer, Kimmo Luoma +1
This Article investigates dissipative preparation of entangled non-equilibrium steady states (NESS). We construct a collision model where the open system consists of two qubits whi…
Interferometric Approach to Open Quantum Systems and Non-Markovian Dynamics
O. Siltanen, T. Kuusela, J. Piilo
We combine the dynamics of open quantum systems with interferometry and interference introducing the concept of open system interferometer. By considering a single photon in a Mach…
Emergent entanglement structures and self-similarity in quantum spin chains
Boris Sokolov, Matteo A. C. Rossi, Guillermo García-Pérez +1
We introduce an experimentally accessible network representation for many-body quantum states based on entanglement between all pairs of its constituents. We illustrate the power o…
Experimental realization of high-fidelity teleportation via non-Markovian open quantum system
Zhao-Di Liu, Yong-Nan Sun, Bi-Heng Liu +5
Open quantum systems and study of decoherence are important for our fundamental understanding of quantum physical phenomena. For practical purposes, there exists a large number of…
Noisy quantum metrology enhanced by continuous nondemolition measurement
Matteo A. C. Rossi, Francesco Albarelli, Dario Tamascelli +1
We show that continuous quantum nondemolition (QND) measurement of an atomic ensemble is able to improve the precision of frequency estimation even in the presence of independent d…
Quantum incompatibility from the viewpoint of entanglement theory
Teiko Heinosaari
In this essay I discuss certain analogies between quantum incompatibility and entanglement. It is an expanded version of my talk presented at Mathematical Foundations of Quantum Me…
Diffusive limit of non-Markovian quantum jumps
Kimmo Luoma, Walter T. Strunz, Jyrki Piilo
We solve two long standing problems for stochastic descriptions of open quantum system dynamics. First, we find the classical stochastic processes corresponding to non-Markovian qu…
Rate operator unravelling for open quantum system dynamics
Andrea Smirne, Matteo Caiaffa, Jyrki Piilo
Stochastic methods with quantum jumps are often used to solve open quantum system dynamics. Moreover, they provide insight into fundamental topics, as the role of measurements in q…
Experimental Quantum Probing Measurements With No Knowledge on the System-Probe Interaction
Henri Lyyra, Olli Siltanen, Jyrki Piilo +2
In any natural science, measurements are the essential link between theory and observable reality. Is it possible to obtain accurate and relevant information via measurement whose…
Communication tasks in operational theories
Teiko Heinosaari, Oskari Kerppo, Leevi Leppäjärvi
We investigate the question which communication tasks can be accomplished within a given operational theory. The concrete task is to find out which communication matrices have a pr…
Distributing Memory Effects in an Open Two-Qubit System
O. Siltanen, T. Kuusela, J. Piilo
We introduce a method to distribute memory effects among different subspaces of an open two-qubit system's state space. Within the linear optical framework, our system of interest…
Epistemic Odds of Contextuality in Cyclic Systems
Ehtibar N. Dzhafarov, Janne V. Kujala, Víctor H. Cervantes
Beginning with the Bell theorem, cyclic systems of dichotomous random variables have been the object of many foundational findings in quantum mechanics. Here, we ask the question:…
Photonic dephasing dynamics and role of initial correlations
Sina Hamedani Raja, K P Athulya, Anil Shaji +1
Dynamics of open quantum systems depends on different types of initial correlations. On the one hand, when system and environment are both inherently multipartite, initial correlat…
Quantum State Discrimination via Repeated Measurements and the Rule of Three
Tom Bullock, Teiko Heinosaari
The task of state discrimination for a set of mutually orthogonal pure states is trivial if one has access to the corresponding sharp (projection-valued) measurement, but what if w…
Non-Markovian quantum dynamics: What does it mean?
C. -F. Li, G. -C. Guo, J. Piilo
During the last ten years, the studies on non-Markovian open system dynamics has become increasingly popular and having contributions from diverse set of research communities. This…