Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Henson, B. M."'
Autor:
Henson, B. M., Thomas, K. F., Mehdi, Z., Burnett, T. G., Ross, J. A., Hodgman, S. S., Truscott, A. G.
Publikováno v:
Optics Express 30 (2022) 13252-13262
We describe a novel method of single-shot trap frequency measurement for a confined Bose-Einstein Condensate, which uses an atom laser to repeatedly sample the mean velocity of trap oscillations as a function of time. The method is able to determine
Externí odkaz:
http://arxiv.org/abs/2201.10021
Autor:
Henson, B. M., Ross, J. A., Thomas, K. F., Kuhn, C. N., Shin, D. K., Hodgman, S. S., Zhang, Yong-Hui, Tang, Li-Yan, Drake, G. W. F., Bondy, A. T., Truscott, A. G., Baldwin, K. G. H.
Publikováno v:
Science 376 (2022) 199-203
Despite quantum electrodynamics (QED) being one of the most stringently tested theories underpinning modern physics, recent precision atomic spectroscopy measurements have uncovered several small discrepancies between experiment and theory. One parti
Externí odkaz:
http://arxiv.org/abs/2107.00149
Autor:
Ross, J. A., Deuar, P., Shin, D. K., Thomas, K. F., Henson, B. M., Hodgman, S. S., Truscott, A. G.
Publikováno v:
Scientific Reports 12, 13178 (2022)
We present observations of the high momentum tail in expanding Bose-Einstein condensates of metastable Helium atoms released from a harmonic trap. The far-field density profile exhibits features that support identification of the tails of the momentu
Externí odkaz:
http://arxiv.org/abs/2103.15283
Autor:
Thomas, K. F., Ross, J. A., Henson, B. M., Shin, D. K., Baldwin, K. G. H., Hodgman, S. S., Truscott, A. G.
Publikováno v:
Phys. Rev. Lett. 125, 013002 (2020)
We present the detection of the highly forbidden $2^{3\!}S_1 \rightarrow 3^{3\!}S_1$ atomic transition in helium, the weakest transition observed in any neutral atom. Our measurements of the transition frequency, upper state lifetime, and transition
Externí odkaz:
http://arxiv.org/abs/2002.04811
Ultracold collisions of Bose-Einstein condensates can be used to generate a large number of counterpropagating pairs of entangled atoms, which collectively form a thin spherical shell in momentum space, called a scattering halo. Here we generate a sc
Externí odkaz:
http://arxiv.org/abs/1906.08958
Publikováno v:
Nature Communications, 10, 4447 (2019)
The violation of a Bell inequality is a striking demonstration of how quantum mechanics contradicts local realism. Although the original argument was presented with a pair of spin 1/2 particles, so far Bell inequalities have been shown to be violated
Externí odkaz:
http://arxiv.org/abs/1811.05681
Autor:
Henson, B. M., Yue, Xuguang, Hodgman, S. S., Shin, D. K., Smirnov, L. A., Ostrovskaya, E. A., Guan, X. W., Truscott, A. G.
Publikováno v:
Phys. Rev. A 97, 063601 (2018)
We develop a simple yet powerful technique to study Bogoliubov-Cherenkov radiation by producing a pulsed atom laser from a strongly confined Bose-Einstein condensate. Such radiation results when the atom laser pulse falls past a Bose-Einstein condens
Externí odkaz:
http://arxiv.org/abs/1711.08886
Autor:
Henson, B. M.
The workhorse of atomic physics, quantum electrodynamics, is one of the best-tested theories in physics. However recent discrepancies have shed doubt on its accuracy for complex atomic systems. To facilitate the development of the theory further we a
Externí odkaz:
http://arxiv.org/abs/1708.08200
Autor:
Khakimov, R. I., Henson, B. M., Shin, D. K., Hodgman, S. S., Dall, R. G., Baldwin, K. G. H., Truscott, A. G.
Ghost imaging is a technique -- first realized in quantum optics -- in which the image emerges from cross-correlation between particles in two separate beams. One beam passes through the object to a bucket (single-pixel) detector, while the second be
Externí odkaz:
http://arxiv.org/abs/1607.02240
Autor:
Henson, B. M., Khakimov, R. I., Dall, R. G., Baldwin, K. G. H., Tang, Li-Yan, Truscott, A. G.
Publikováno v:
Phys. Rev. Lett. 115, 043004 (2015)
We present the first measurement for helium atoms of the tune-out wavelength at which the atomic polarizability vanishes. We utilise a novel, highly sensitive technique for precisely measuring the effect of variations in the trapping potential of con
Externí odkaz:
http://arxiv.org/abs/1505.03642