Zobrazeno 1 - 10
of 365
pro vyhledávání: '"Lovett B"'
Autor:
Quach, J. Q., McGhee, K. E., Ganzer, L., Rouse, D. M., Lovett, B. W., Gauger, E. M., Keeling, J., Cerullo, G., Lidzey, D. G., Virgili, T.
Publikováno v:
Science Advances 8, eabk3160 (2022)
The rate at which matter emits or absorbs light can be modified by its environment, as dramatically exemplified by the widely-studied phenomenon of superradiance. The reverse process, superabsorption, is harder to demonstrate due to the challenges of
Externí odkaz:
http://arxiv.org/abs/2012.06026
Dark state protection has been proposed as a mechanism to increase the power output of light harvesting devices by reducing the rate of radiative recombination. Indeed many theoretical studies have reported increased power outputs in dimer systems wh
Externí odkaz:
http://arxiv.org/abs/1901.11527
Autor:
Bruce, G. D., Haller, E., Peaudecerf, B., Cotta, D. A., Andia, M., Wu, S., Johnson, M. Y. H., Lovett, B. W., Kuhr, S.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 50, 095002 (2017)
Gray molasses is a powerful tool for sub-Doppler laser cooling of atoms to low temperatures. For alkaline atoms, this technique is commonly implemented with cooling lasers which are blue-detuned from either the D1 or D2 line. Here we show that effici
Externí odkaz:
http://arxiv.org/abs/1612.04583
Publikováno v:
Phys. Rev. A 94, 032302 (2016)
We investigate different geometries of spin-1/2 nitrogen impurity channels for distributing entanglement between pairs of remote nitrogen vacancy centers (NVs) in diamond. To go beyond the system size limits imposed by directly solving the master equ
Externí odkaz:
http://arxiv.org/abs/1604.01297
Publikováno v:
Phys. Rev. A 93, 042109 (2016)
The interplay between an open quantum system and its environment can lead to both coherent and incoherent behaviour. We explore the extent to which strong coupling to a single bosonic mode can alter the coherence properties of a two-level system in a
Externí odkaz:
http://arxiv.org/abs/1510.00608
Publikováno v:
Phys. Rev. A 94, 012110 (2016)
Finding efficient descriptions of how an environment affects a collection of discrete quantum systems would lead to new insights into many areas of modern physics. Markovian, or time-local, methods work well for individual systems, but for groups a q
Externí odkaz:
http://arxiv.org/abs/1508.04744
Publikováno v:
Phys. Rev. B 93, 035306 (2016)
A scaled quantum computer with donor spins in silicon would benefit from a viable semiconductor framework and a strong inherent decoupling of the qubits from the noisy environment. Coupling neighbouring spins via the natural exchange interaction acco
Externí odkaz:
http://arxiv.org/abs/1506.04913
Publikováno v:
Journal of Physical Chemistry C, 121 (38), pp 20714-20719, 2017
Natural and artificial light harvesting systems often operate in a regime where the flux of photons is relatively low. Besides absorbing as many photons as possible it is therefore paramount to prevent excitons from annihilation via photon re-emissio
Externí odkaz:
http://arxiv.org/abs/1504.05849
Publikováno v:
Phys. Rev. B 91 245301 (2015)
We study a pair of quantum dot exciton qubits interacting with a number of fluctuating charges that can induce a Stark shift of both exciton transition energies. We do this by solving the optical master equation using a numerical transfer matrix meth
Externí odkaz:
http://arxiv.org/abs/1501.02111
Autor:
Pica, G., Wolfowicz, G., Urdampilleta, M., Thewalt, M. L. W., Riemann, H., Abrosimov, N. V., Becker, P., Pohl, H. -J., Morton, J. J. L., Bhatt, R. N., Lyon, S. A., Lovett, B. W.
Publikováno v:
Phys. Rev. B 90 195204 (2014)
We present a complete theoretical treatment of Stark effects in doped silicon, whose predictions are supported by experimental measurements. A multi-valley effective mass theory, dealing non-perturbatively with valley-orbit interactions induced by a
Externí odkaz:
http://arxiv.org/abs/1408.4375