Zobrazeno 1 - 10
of 2 614
pro vyhledávání: '"Segal D."'
Publikováno v:
Journal of Modern Optics, Taylor & Francis, 2018, 65 (5-6), pp.490 - 500
The text below was written during two visits that Daniel Segal made at Universit{\'e} Paris 13. Danny stayed at Laboratoire de Physique des Lasers the summers of 2008 and 2009 to participate in the exploration of a novel lead in the field of ultra-hi
Externí odkaz:
http://arxiv.org/abs/1803.04772
Publikováno v:
Phys. Rev. Lett. 116, 143002 (2016)
We report the laser cooling of a single $^{40}\text{Ca}^+$ ion in a Penning trap to the motional ground state in one dimension. Cooling is performed in the strong binding limit on the 729-nm electric quadrupole $S_{1/2}\leftrightarrow D_{5/2}$ transi
Externí odkaz:
http://arxiv.org/abs/1407.6121
Autor:
Segal, D.
Publikováno v:
Phys. Rev. B 87, 195436 (2013)
We study qubit-mediated energy transfer between two electron reservoirs by adopting a numerically-exact influence functional path-integral method. This non-perturbative technique allows us to study the system's dynamics beyond the weak coupling limit
Externí odkaz:
http://arxiv.org/abs/1303.5815
Autor:
Andelkovic, Z., Cazan, R., Nörtershäuser, W., Bharadia, S., Segal, D. M., Thompson, R. C., Jöhren, R., Vollbrecht, J., Hannen, V., Vogel, M.
We have performed laser cooling of Mg ions confined in a Penning trap. The externally produced ions were captured in flight, stored and laser cooled. Laser-induced fluorescence was observed perpendicular to the cooling laser axis. Optical detection d
Externí odkaz:
http://arxiv.org/abs/1211.2106
Autor:
Simine, L., Segal, D.
Publikováno v:
Phys. Chem. Chem. Phys. 14 , 13820 - 13834 (2012)
We study current-induced vibrational cooling, heating, and instability in a donor-acceptor rectifying molecular junction using a full counting statistics approach. In our model, electron-hole pair excitations are coupled to a given molecular vibratio
Externí odkaz:
http://arxiv.org/abs/1203.3910
Autor:
Nicolin, L., Segal, D.
Publikováno v:
Phys. Rev. B, 84, 161414 (2011)
We study quantum heat exchange in a multi-state impurity coupled to two thermal reservoirs. Allowing for strong system-bath interactions, we show that a steady-state heat exchange fluctuation theorem holds, though the dynamical processes nonlinearly
Externí odkaz:
http://arxiv.org/abs/1106.0353
Autor:
Skoff, S. M., Hendricks, R. J., Sinclair, C. D. J., Hudson, J. J., Segal, D. M., Sauer, B. E., Hinds, E. A., Tarbutt, M. R.
Publikováno v:
Phys. Rev. A 83, 023418 (2011)
We produce YbF molecules with a density of 10^18 m^-3 using laser ablation inside a cryogenically-cooled cell filled with a helium buffer gas. Using absorption imaging and absorption spectroscopy we study the formation, diffusion, thermalization and
Externí odkaz:
http://arxiv.org/abs/1009.5124
Autor:
Skoff, S. M., Hendricks, R. J., Sinclair, C. D. J., Tarbutt, M. R., Hudson, J. J., Segal, D. M., Sauer, B. E., Hinds, E. A.
Publikováno v:
New J. Phys. 11, 123026 (2009)
We demonstrate Doppler-free saturated absorption spectroscopy of cold molecular radicals formed by laser ablation inside a cryogenic buffer gas cell. By lowering the temperature, congested regions of the spectrum can be simplified, and by using diffe
Externí odkaz:
http://arxiv.org/abs/0909.5534
Publikováno v:
Rev. Sci. Instrum. 81, 013111 (2010)
We report on the design and testing of an array of Penning ion traps made from printed circuit board. The system enables fast shuttling of ions from one trapping zone to another, which could be of use in quantum information processing. We describe si
Externí odkaz:
http://arxiv.org/abs/0901.2716
Publikováno v:
Phys. Rev. Lett. 101, 260504 (2008)
Since Hund's work on the ammonia molecule, the double well potential has formed a key paradigm in physics. Its importance is further underlined by the central role it plays in the Landau theory of phase transitions. Recently, the study of entanglemen
Externí odkaz:
http://arxiv.org/abs/0801.0623