Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Erik M Gauger"'
Publikováno v:
New Journal of Physics, Vol 24, Iss 9, p 093027 (2022)
Starting from a quantum description of multiple Λ-type three-level atoms driven with a coherent microwave field and incoherent optical pumping, we derive a microscopic model of lasing from which we move towards a consistent macroscopic picture. Our
Externí odkaz:
https://doaj.org/article/f49204a4611b43c7b3c27a447c24c4cd
Autor:
Francesco Mattiotti, William M Brown, Nicola Piovella, Stefano Olivares, Erik M Gauger, G. Luca Celardo
Publikováno v:
New Journal of Physics, Vol 23, Iss 10, p 103015 (2021)
Even though sunlight is by far the most abundant renewable energy source available to humanity, its dilute and variable nature has kept efficient ways to collect, store, and distribute this energy tantalisingly out of reach. Turning the incoherent en
Externí odkaz:
https://doaj.org/article/964a829c4ce6416f9dbcf9b50a62646a
Publikováno v:
New Journal of Physics, Vol 23, Iss 12, p 123014 (2021)
Environmental noise plays a key role in determining the efficiency of transport in quantum systems. However, disorder and localisation alter the impact of such noise on energy transport. To provide a deeper understanding of this relationship we perfo
Externí odkaz:
https://doaj.org/article/83b029ff5aba4febb31d63d552acb379
Publikováno v:
New Journal of Physics, Vol 22, Iss 3, p 035002 (2020)
Decoherence, resulting from unwanted interaction between a qubit and its environment, poses a serious challenge towards the development of quantum technologies. Recently, researchers have started analysing how real-time Hamiltonian learning approache
Externí odkaz:
https://doaj.org/article/b0d3ba97ac3c4c26aa45b10bb1fcfa05
Publikováno v:
Physical Review Research, Vol 6, Iss 4, p 043203 (2024)
The algorithm “automated compression of environments” (ACE) [M. Cygorek et al., Nat. Phys. 18, 662 (2022)1745-247310.1038/s41567-022-01544-9] provides a versatile way of simulating an extremely broad class of open quantum systems. This is achieve
Externí odkaz:
https://doaj.org/article/613260ab7dee4231827225555c80876a
Publikováno v:
New Journal of Physics, Vol 17, Iss 2, p 023063 (2015)
We introduce a new analytical method for studying the open quantum systems problem of a discrete system weakly coupled to an environment of harmonic oscillators. Our approach is based on a phase space representation of the density matrix for a system
Externí odkaz:
https://doaj.org/article/0967684717774d2d896ad84cbf0caee4
Publikováno v:
New Journal of Physics, Vol 15, Iss 7, p 075018 (2013)
Unitary transformations can allow one to study open quantum systems in situations for which standard, weak-coupling type approximations are not valid. We develop here an extension of the variational (polaron) transformation approach to open system dy
Externí odkaz:
https://doaj.org/article/f84b75894029425ca364d86e83111ad5
Publikováno v:
New Journal of Physics, Vol 14, Iss 11, p 113004 (2012)
Reliable single photon sources constitute the basis of schemes for quantum communication and measurement based quantum computing. Solid state single photon sources based on quantum dots are convenient and versatile but the electronic transitions that
Externí odkaz:
https://doaj.org/article/fd068a3bdb8f4b639698195610727f3f
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract The suggestion that quantum coherence might enhance biological processes such as photosynthesis is not only of fundamental importance but also leads to hopes of developing bio-inspired ‘green’ quantum technologies that mimic nature. A ke
Externí odkaz:
https://doaj.org/article/1ae6f22b98ec4c549bcff5925f9af181
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Systems of interacting charges and fields are ubiquitous in physics. Recently, it has been shown that Hamiltonians derived using different gauges can yield different physical results when matter degrees of freedom are truncated to a few low-
Externí odkaz:
https://doaj.org/article/e33d799fba8a4a428526482ba2baa269