Enhancement of Rydberg atom interactions using ac Stark shifts.
نویسندگان
چکیده
The ac Stark effect was used to induce resonant energy transfer between translationally cold 85Rb Rydberg atoms. When a 28.5 GHz dressing field was set at specific field strengths, the two-atom dipole-dipole process 43d5/2+43d5/2-->45p3/2+41f was dramatically enhanced, due to induced degeneracy of the initial and final states. This method for enhancing interactions is complementary to dc electric-field-induced resonant energy transfer, but has more flexibility due to the possibility of varying the applied frequency.
منابع مشابه
Trapping and coherent manipulation of a Rydberg atom on a microfabricated device: a proposal
We propose to apply atom-chip techniques to the trapping of a single atom in a circular Rydberg state. The small size of microfabricated structures will allow for trap geometries with microwave cut-off frequencies high enough to inhibit the spontaneous emission of the Rydberg atom, paving the way to complete control of both external and internal degrees of freedom over very long times. Trapping...
متن کاملRydberg-blockade controlled-NOT gate and entanglement in a two-dimensional array of neutral-atom qubits
We present experimental results on two-qubit Rydberg-blockade quantum gates and entanglement in a twodimensional qubit array. Without postselection against atom loss we achieve a Bell state fidelity of 0.73 ± 0.05. The experiments are performed in an array of single Cs atom qubits with a site to site spacing of 3.8 μm. Using the standard protocol for a Rydberg-blockade CZ gate together with sin...
متن کاملThree-photon electromagnetically induced transparency using Rydberg states.
We demonstrate electromagnetically induced transparency in a four-level cascade system where the upper level is a Rydberg state. The observed spectral features are sub-Doppler and can be enhanced due to the compensation of Doppler shifts with AC Stark shifts. A theoretical description of the system is developed that agrees well with the experimental results, and an expression for the optimum pa...
متن کاملControlling the interactions between cold Rydberg atoms by a time-varying electric field
Long-range interactions between cold Rydberg atoms are being investigated for neutral-atom quantum computing, quantum simulations, phase transitions in cold Rydberg gases and other applications. Fine tuning of the interaction strength can be implemented using Förster resonances between Rydberg atoms controlled by an electric field. The observation of the Stark-tuned Förster resonances between R...
متن کاملARC: An open-source library for calculating properties of alkali Rydberg atoms
Wepresent an object-oriented Python library for the computation of properties of highly-excited Rydberg states of alkali atoms. These include single-body effects such as dipole matrix elements, excited-state lifetimes (radiative and black-body limited) and Stark maps of atoms in external electric fields, as well as two-atom interaction potentials accounting for dipole and quadrupole coupling ef...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 98 20 شماره
صفحات -
تاریخ انتشار 2007