Zobrazeno 1 - 10
of 175
pro vyhledávání: '"B. A. Linden"'
Autor:
de Hond, Julius, Cisternas, Nataly, Spreeuw, R. J. C., Heuvell, H. B. van Linden van den, van Druten, N. J.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 53 084007 (2020)
Coherently manipulating Rydberg atoms in mesoscopic systems has proven challenging due to the unwanted population of nearby Rydberg levels by black-body radiation. Recently, there have been some efforts towards understanding these effects using state
Externí odkaz:
http://arxiv.org/abs/1912.04038
Autor:
de Hond, Julius, van Bijnen, Rick, Kokkelmans, S. J. J. M. F., Spreeuw, R. J. C., Heuvell, H. B. van Linden van den, van Druten, N. J.
Publikováno v:
Phys. Rev. A 98, 062714 (2018)
Using time-resolved measurements, we demonstrate coherent collective Rydberg excitation crossing over into Rydberg blockade in a dense and ultracold gas trapped at a distance of 100 $\mu$m from a room-temperature atom chip. We perform Ramsey-type mea
Externí odkaz:
http://arxiv.org/abs/1810.04532
Publikováno v:
Phys. Rev. A 99, 022303 (2019)
We have designed and realized magnetic trapping geometries for ultracold atoms based on permanent magnetic films. Magnetic chip based experiments give a high level of control over trap barriers and geometric boundaries in a compact experimental setup
Externí odkaz:
http://arxiv.org/abs/1808.04131
Autor:
Davtyan, D., Machluf, S., Soudijn, M. L., Naber, J. B., van Druten, N. J., Heuvell, H. B. van Linden van den, Spreeuw, R. J. C.
Publikováno v:
Phys. Rev. A 97, 023418 (2018)
Experiments handling Rydberg atoms near surfaces must necessarily deal with the high sensitivity of Rydberg atoms to (stray) electric fields that typically emanate from adsorbates on the surface. We demonstrate a method to modify and reduce the stray
Externí odkaz:
http://arxiv.org/abs/1710.05301
Characterizing the local vectorial electric field near an atom chip using Rydberg state spectroscopy
Autor:
Cisternas, N., de Hond, Julius, Lochead, G., Spreeuw, R. J. C., Heuvell, H. B. van Linden van den, van Druten, N. J.
Publikováno v:
Phys. Rev. A 96, 013425 (2017)
We use the sensitive response to electric fields of Rydberg atoms to characterize all three vector components of the local electric field close to an atom-chip surface. We measured Stark-Zeeman maps of $S$ and $D$ Rydberg states using an elongated cl
Externí odkaz:
http://arxiv.org/abs/1705.07685
Publikováno v:
SciPost Phys. 2, 015 (2017)
We present experimental results on the influence of magnetic fields and laser polarization on electromagnetically induced transparency (EIT) using Rydberg levels of $^{87}$Rb atoms. The measurements are performed in a room temperature vapor cell with
Externí odkaz:
http://arxiv.org/abs/1606.08260
Autor:
Naber, J., Machluf, S., Torralbo-Campo, L., Soudijn, M. L., van Druten, N. J., Heuvell, H. B. van Linden van den, Spreeuw, R. J. C.
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. 49, 094005 (2016)
Trapping a Rydberg atom close to a surface is an important step towards the realisation of many proposals of quantum information or hybrid quantum systems. One of the challenges in these experiments is to overcome the electric field emanating from co
Externí odkaz:
http://arxiv.org/abs/1512.07511
Publikováno v:
Phys. Rev. A 89, 033414 (2014)
We have performed calculations of attosecond laser-atom interactions for laser intensities where interesting two and three photon effects become relevant. In particular, we examine the case of "hole burning" in the initial orbital. Hole burning is pr
Externí odkaz:
http://arxiv.org/abs/1401.5643
Publikováno v:
Phys. Rev. A 87, 042522 (2013)
We present direct measurements of the hyperfine splitting of Rydberg states in rubidium 87 using Electromagnetically Induced Transparency (EIT) spectroscopy in a room-temperature vapour cell. With this method, and in spite of Doppler-broadening, line
Externí odkaz:
http://arxiv.org/abs/1301.6907
Autor:
Tauschinsky, Atreju, Thijssen, Rutger M. T., Whitlock, S., Heuvell, H. B. van Linden van den, Spreeuw, R. J. C.
Publikováno v:
Phys. Rev. A 81, 063411 (2010)
We demonstrate spatially resolved, coherent excitation of Rydberg atoms on an atom chip. Electromagnetically induced transparency (EIT) is used to investigate the properties of the Rydberg atoms near the gold coated chip surface. We measure distance
Externí odkaz:
http://arxiv.org/abs/1004.3230