Quantum gases

Selected publications

Research areas

• Spin-polarized atomic hydrogen
• Ultracold gases in magnetostatic traps
• Physisorption at ultra-low temperatures
• Two-dimensional quantum gas
• Antihydrogen
• Metastable triplet helium

Spin-polarized atomic hydrogen

• Spin-polarized atomic hydrogen
  I.F. Silvera and J.T.M. Walraven
  in New Trends in Atomic Physics, Vol. II, eds. G. Grynberg and R. Stora, Elsevier, Amsterdam, 1982.

Ultracold gases in magnetostatic traps

• Bose Condensation and Relaxation Explosion in Magnetically Trapped Atomic Hydrogen
  T.W. Hijmans, Yu. Kagan, G.V. Shlyapnikov, and J.T.M. Walraven
  Phys. Rev. B 48, 12886 (1993).

• Lyman-alpha Spectroscopy of Magnetically Trapped Atomic Hydrogen
  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, 554 (1993).

• Optical Cooling of Atomic Hydrogen in a Magnetic Trap
  I.D. Setija, H.G.C. Werij, O.J. Luiten, M.W. Reynolds, T.W. Hijmans, and J.T.M. Walraven
  Phys. Rev. Lett. 70, 2257 (1993).

• Lyman-alpha Spectroscopy of Magnetically Trapped Atomic Hydrogen
  O.J. Luiten, H.G.C. Werij, I.D. Setija, M.W. Reynolds, T.W. Hijmans, and J.T.M. Walraven
  (invited) in: Atomic Physics 13 (ICAP-13), H. Walther, T.W. Hänsch, B. Neizert, Eds., AIP New York, 1993, pp. 167-181.

• Atomic hydrogen in magnetostatic traps
  J.T.M. Walraven and T.W. Hijmans
  Physica B 197, 417 (1994).

• Evaporative cooling of magnetically trapped hydrogen
  O.J. Luiten, H.G.C. Werij, M.W. Reynolds, I.D. Setija, T.W. Hijmans, and J.T.M. Walraven
  Physica B 194-196, 879 (1994).

• VUV spectroscopy of magnetically trapped atomic hydrogen
  O.J. Luiten, H.G.C. Werij, M.W. Reynolds, I.D. Setija, T.W. Hijmans, and J.T.M. Walraven
  Special Issue on high resolution spectroscopy, Appl. Phys. B. 59, 311 (1994).

• Kinetic theory of evaporative cooling
  O.J. Luiten, M.W. Reynolds, and J.T.M. Walraven
  Phys. Rev. A. 53, 381 (1996).
  [abstract.txt].

• Three-body recombination of ultra-cold atoms to a weakly bound s level
  P.O. Fedichev, M.W. Reynolds, and G.V. Shlyapnikov
  Submitted to Phys. Rev. Lett. 5 March 1996.

Physisorption at ultra-low temperatures

• Focusing of hydrogen atoms with a concave He-coated mirror
  J.J. Berkhout, O.J. Luiten, I.D. Setija, T.W. Hijmans, T. Mizusaki and J.T.M. Walraven
  Physica B 165&166, 11 (1990).

• Scattering of atomic hydrogen from the surface of liquid helium films
  J.T.M. Walraven
  (invited) in: Excitations in two-dimensional and three-dimensional quantum fluids, A.F.G. Wyatt and H.J. Lauter (Eds.), NATO ASI Series B: Physics Vol 257, (1991), pp. 511-519.

• Atomic hydrogen and liquid helium surfaces
  J.T.M. Walraven
  (invited) in: Fundamental systems in quantum optics, J. Dalibard, J.M. Raimond and J. Zinn-Justin (Eds.), Elsevier Science Publishers, Amsterdam 1992, pp. 487-544.

• Influence of the substrate on the low-temperature limit of the sticking probability of hydrogen atoms on He films
  T.W. Hijmans, J.T.M. Walraven and G.V. Shlyapnikov
  Phys. Rev. B 45, 2561 (1992).

• Scattering of hydrogen atoms from liquid-helium surfaces
  J.J. Berkhout and J.T.M. Walraven
  Phys. Rev. B 47, 8886 (1993).

Two-dimensional quantum gas

• Resonant light absorption and the problem of observing the Kosterlitz-Thouless transition in spin-polarized hydrogen adsorbed on a liquid-He surface
  B.V. Svistunov, T.W. Hijmans, G.V. Shlyapnikov, and J.T.M. Walraven
  Phys. Rev. B 43, 13412 (1991).

• Energy transfer between ripplons and phonons in liquid helium at low temperatures
  M.W. Reynolds, I.D. Setija, and G.V. Shlyapnikov
  Phys. Rev. B 46, 575 (1992).
  [abstract.txt].

• Optical excitation of atomic hydrogen adsorbed on liquid helium
  M.W. Reynolds and J.T.M. Walraven
  Physica B 194-196, 905 (1994).

• Elementary excitations of atomic hydrogen gas on liquid helium
  M.W. Reynolds and G.V. Shylapnikov
  Phys. Lett. A 207, 105 (1995).
  [abstract.txt].

Antihydrogen

• Trapping and cooling of (anti)hydrogen
  J.T.M. Walraven
  Hyperfine Interactions 76, 205 (1993).

• Antihydrogen at sub-Kelvin temperatures
  G.V. Shlyapnikov, J.T.M. Walraven and E.L. Surkov
  Hyperfine Interactions 76, 31 (1993).

• Collisionless motion of neutral particles in magnetostatic traps
  E.L. Surkov, J.T.M. Walraven, and G.V. Shlyapnikov
  Phys. Rev. A 49, 4778 (1994).

Metastable triplet helium

• Decay kinetics and Bose Condensation in a gas of spin-polarized triplet helium
  G.V. Shlyapnikov, J.T.M. Walraven, U.M. Rahmanov, and M.W. Reynolds
  Phys. Rev. Lett. 73, 3247 (1994).

• Inelastic decay processes in a gas of spin-polarized triplet helium
  P.O. Fedichev, M.W. Reynolds, U.M. Rahmanov, and G.V. Shlyapnikov
  Phys. Rev. A. 53, 1447 (1996).
  [abstract.txt].