Abstract
Spin-polarized atomic hydrogen adsorbed on the surface of liquid helium is the most promising candidate for the observation of quantum degeneracy in a two-dimensional Base gas. In this article we describe our experimental apparatus which is being used to realize this goal. The apparatus employs a system of superconducting and iron magnets to supply electron and proton spin-polarized hydrogen to a cold cell (T ≍ 0.1K) at sufficient flux to compensate recombination losses and attain the regime of two-dimensional quantum degeneracy. The gas in the cell is probed using light resonant with the Lyman-α atomic transition.
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REFERENCES
J.T.M. Walraven, in Fundamental Systems in Quantum Optics, ed. by J. Dalibard, J.M. Raimond, and J. Zinn-Justin, Elsevier Science Publishers, 1992, p. 485; and references therein.
I.F. Silvera, in Bose-Einstein Condensation, ed. by A. Griffin, D.W. Snoke and S. Stringari, Cambridge University Press, 1995, p. 160; and references therein.
Yu. Kagan, B.V. Svistunov, and G.V. Shlyapnikov, Sov. Phys. JETP 66, 314 (1987) [Zh. Eksp. Teor. Fiz. 93, 552 (1987)].
H.T.C. Stoof and M. Bijlsma, Phys. Rev. E 47, 939 (1993); Physica B 194–196, 909 (1994).
A.I. Safonov, S.A. Vasilyev, I.S. Yasnikov, E. Tjukanov, I.I. Lukashevich, and S. Jaakkola, Czech. J. Phys. 46, 539 (1996).
I.F. Silvera, J. Low Temp. Phys. 101, 49 (1995).
A. Matsubara, T. Arai, S. Hotta, J.S. Korhonen, T. Mizusaki, and A. Hirai, in Bose-Einstein Condensation, ed. by A. Griffin, D.W. Snoke and S. Stringari, Cambridge University Press, 1995, p. 478; A. Fukuda, M. Yamane, A. Matsubara, T. Arai, J.S. Korhonen, J.T.M. Walraven, and T. Mizusaki, Czech. J. Phys. 46, 541 (1996).
VACOFLUX 50 (49% Co, 2% V, remainder Fe), made by Vacuumschmelze.
O.J. Luiten, H.G.C. Werij, I.D. Setija, M.W. Reynolds, T.W. Hijmans, and J.T.M. Walraven, Phys. Rev. Lett. 70, 544 (1993); O.J. Luiten, H.G.C. Werij, M.W. Reynolds, I.D. Setija, T.W. Hijmans, and J.T.M. Walraven, Appl. Phys. B 59, 311 (1994).
B.V. Svistunov, T.W. Hijmans, G.V. Shlyapnikov, and J.T.M. Walraven, Phys. Rev. B 43, 13412 (1991).
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Mosk, A., Pinkse, P., Reynolds, M. et al. Apparatus for Optical Study of Atomic Hydrogen on the Surface of Liquid Helium. Journal of Low Temperature Physics 110, 199–204 (1998). https://doi.org/10.1023/A:1022547708550
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DOI: https://doi.org/10.1023/A:1022547708550