rf-Field-Induced Feshbach Resonances

نویسندگان

  • Tommaso Calarco
  • Roman V. Krems
  • Alexander Dalgarno
  • T. V. Tscherbul
  • T. Calarco
  • I. Lesanovsky
  • R. V. Krems
  • A. Dalgarno
چکیده

T. V. Tscherbul,1,2,* T. Calarco,3 I. Lesanovsky,4 R. V. Krems,5 A. Dalgarno,1,2 and J. Schmiedmayer6 1Harvard-MIT Center for Ultracold Atoms, Cambridge, Massachusetts 02138, USA 2ITAMP, Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138, USA 3Institute of Quantum Information Processing, Ulm University, D-89081 Ulm, Germany 4School of Physics and Astronomy, The University of Nottingham, Nottingham NG7 2RD, United Kingdom 5Department of Chemistry, University of British Columbia, Vancouver BC, V6T 1Z1, Canada 6Atominstitut, TU-Wien, Stadionallee 2, 1020 Vienna, Austria (Received 15 September 2009; published 11 May 2010)

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Observation of heteronuclear Feshbach resonances in a mixture of bosons and fermions.

Three magnetic-field induced heteronuclear Feshbach resonances were identified in collisions between bosonic 87Rb and fermionic 40K atoms in their absolute ground states. Strong inelastic loss from an optically trapped mixture was observed at the resonance positions of 492, 512, and 543+/-2 G. The magnetic-field locations of these resonances place a tight constraint on the triplet and singlet c...

متن کامل

Precise characterization of 6Li Feshbach resonances using trap-sideband-resolved RF spectroscopy of weakly bound molecules.

We perform radio-frequency dissociation spectroscopy of weakly bound 6Li2 Feshbach molecules using low-density samples of about 30 molecules in an optical dipole trap. Combined with a high magnetic field stability, this allows us to resolve the discrete trap levels in the radio-frequency dissociation spectra. This novel technique allows the binding energy of Feshbach molecules to be determined ...

متن کامل

Precision Feshbach spectroscopy of ultracold Cs2

We have observed and located more than 60 magnetic field-induced Feshbach resonances in ultracold collisions of ground-state Cs atoms. Multiple extremely weak Feshbach resonances associated with g-wave molecular states are detected through variations in the radiative collision cross sections. The Feshbach spectroscopy allows us to determine the interactions between ultracold cesium atoms and th...

متن کامل

Optical Control of Magnetic Feshbach Resonances by Closed-Channel Electromagnetically Induced Transparency.

We control magnetic Feshbach resonances in an optically trapped mixture of the two lowest hyperfine states of a ^{6}Li Fermi gas, using two optical fields to create a dark state in the closed molecular channel. In the experiments, the narrow Feshbach resonance is tuned by up to 3 G. For the broad resonance, the spontaneous lifetime is increased to 0.4 s at the dark-state resonance, compared to ...

متن کامل

Multiplet structure of Feshbach resonances in nonzero partial waves

We report a unique feature of magnetic-field Feshbach resonances in which atoms collide with nonzero orbital angular momentum. p-wave sl=1d Feshbach resonances are split into two components depending on the magnitude of the resonant state’s projection of orbital angular momentum onto the field axis. This splitting is due to the magnetic dipole-dipole interaction between the atoms and it offers ...

متن کامل

Production of cold molecules via magnetically tunable Feshbach resonances

Magnetically tunable Feshbach resonances were employed to associate cold diatomic molecules in a series of experiments involving both atomic Bose as well as two spin component Fermi gases. This review illustrates theoretical concepts of both the particular nature of the highly excited Feshbach molecules produced and the techniques for their association from unbound atom pairs. Coupled channels ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2010