Multichannel quantum defect theory: a quantum Poincaré map
نویسندگان
چکیده
منابع مشابه
Multichannel quantum defect theory: a quantum Poincaré map
The multichannel quantum defect theory (MQDT) can be reinterpreted as a quantum Poincaré map in representation of angular momentum. This has two important implications: we have a paradigm of a true quantum Poincaré map without semiclassical input and we get an entirely new insight into the significance of MQDT. PACS: 05.45.Mt; 33.80.Rv; 03.65.Sq In recent years there has been a rapidly growing ...
متن کاملMultichannel Quantum Defect Theory for cold molecular collisions
Multichannel Quantum Defect Theory (MQDT) is shown to be capable of producing quantitatively accurate results for low-energy atom-molecule scattering calculations. With a suitable choice of reference potential and short-range matching distance, it is possible to define a matrix that encapsulates the short-range collision dynamics and is only weakly dependent on energy and magnetic field. Once t...
متن کاملMultichannel quantum-defect theory for slow atomic collisions
We present a multichannel quantum-defect theory for slow atomic collisions that takes advantages of the analytic solutions for the long-range potential and both the energy and angular momentum insensitivities of the short-range parameters. The theory provides an accurate and complete account of scattering processes, including shape and Feshbach resonances, in terms of a few parameters such as t...
متن کاملMultichannel quantum defect theory analysis of the Rydberg spectrum of Na2
2014 The ns and nd Na2 Rydberg states have been excited by Optical-Optical Double Resonance for 15 n 80 and 4 J 45. The observed spectra are analysed in terms of the Multi-Channel Quantum Defect Theory. The intensities and the energies of all the measured lines are theoretically calculated using as parameters the quantum defects of the various series and the molecular constants of the Na2+ ion....
متن کاملMultichannel quantum defect theory for rovibrational transitions in ultracold molecule-molecule collisions
Multichannel quantum defect theory (MQDT) has been widely applied to resonant and nonresonant scattering in a variety of atomic collision processes. In recent years, the method has been applied to cold collisions with considerable success, and it has proven to be a computationally viable alternative to full close-coupling (CC) calculations when spin, hyperfine, and external field effects are in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters A
سال: 2000
ISSN: 0375-9601
DOI: 10.1016/s0375-9601(00)00207-3