J
Jonatan Bohr Brask
Researcher at Technical University of Denmark
Publications - 87
Citations - 2920
Jonatan Bohr Brask is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Quantum entanglement & Quantum. The author has an hindex of 25, co-authored 79 publications receiving 2343 citations. Previous affiliations of Jonatan Bohr Brask include University of Copenhagen & University of Geneva.
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Markovian master equations for quantum thermal machines: local versus global approach
Patrick P. Hofer,Martí Perarnau-Llobet,L. David M. Miranda,Géraldine Haack,Ralph Silva,Jonatan Bohr Brask,Nicolas Brunner +6 more
TL;DR: In this article, the authors compare the local and global approaches against an exact solution for a particular class of thermal machines, and show that the use of a local master equation is generally well justified.
Journal ArticleDOI
Markovian master equations for quantum thermal machines: local vs global approach
Patrick P. Hofer,Martí Perarnau-Llobet,L. David M. Miranda,Géraldine Haack,Ralph Silva,Jonatan Bohr Brask,Nicolas Brunner +6 more
TL;DR: In this paper, the authors compare the local and global approaches against an exact solution for a particular class of thermal machines, and show that the use of a local master equation is generally well justified.
Journal ArticleDOI
Noisy Metrology beyond the Standard Quantum Limit
TL;DR: It is shown that precision can be significantly enhanced when the noise is concentrated along some spatial direction, while the Hamiltonian governing the evolution which depends on the parameter to be estimated can be engineered to point along a different direction.
Journal ArticleDOI
Self-testing quantum random number generator
Tommaso Lunghi,Jonatan Bohr Brask,Charles Ci Wen Lim,Quentin Lavigne,Joseph Bowles,Anthony Martin,Hugo Zbinden,Nicolas Brunner +7 more
TL;DR: This work presents a protocol for self-testing quantum random number generation, in which the user can monitor the entropy in real time, and guarantees continuous generation of high quality randomness, without the need for a detailed characterization of the devices.
Journal ArticleDOI
Autonomous quantum refrigerator in a circuit QED architecture based on a Josephson junction
Patrick P. Hofer,Martí Perarnau-Llobet,Martí Perarnau-Llobet,Jonatan Bohr Brask,Ralph Silva,Marcus Huber,Marcus Huber,Nicolas Brunner +7 more
TL;DR: In this article, an implementation of a small quantum absorption refrigerator in a circuit QED architecture is proposed, which consists of three harmonic oscillators coupled to a Josephson junction, and it does not require any external control for cooling, but only thermal contact between the oscillators and heat baths at different temperatures.