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利用重归一化Numerov方法研究超冷双原子碰撞
重归一化Numerov方法 超低温 Feshbach共振
2022/3/17
采用重归一化Numerov算法求解关于超低温双原子碰撞问题的非含时薛定谔方程组。以39K-133Cs碰撞为例，研究了超低温下双原子Feshbach共振的性质。结果表明，重归一化Numerov算法可以很精确地描述超冷条件下碰撞过程。与改进的logarithmicderivative算法相比，在同等参数条件下，重归一化Numerov方法在计算效率上虽然有一定劣势，但在大格点步长参数范围内有着更好的稳定...
Stationary point approach to the phase transition of the classical XY chain with power law interactions
Stationary point power law interactions
2010/11/25
The stationary points of the Hamiltonian H of the classical XY chain with power law pair
interactions (i. e., decaying like r− with the distance) are analyzed. For a class of “spinwave-type”st...
Interaction and filling induced quantum phases of dual Mott insulators of bosons and fermions
Interaction quantum phases of dual Mott insulators bosons fermions
2010/11/24
Many-body effects are at the very heart of diverse phenomena found in condensed-matter physics.
One striking example is the Mott insulator phase where conductivity is suppressed as a result
of a str...
How many of the scaling trends in $pp$ collisions will be violated at sqrt{s_NN} = 14 TeV ? - Predictions from Monte Carlo quark-gluon string model
scaling trends $pp$ collisions Carlo quark-gluon string model
2011/1/7
Multiplicity, rapidity and transverse momentum distributions of hadrons produced both in inelastic and non-diffractive pp collisions at energies from ps = 200GeV to 14TeV are studied within the Monte ...
How many of the scaling trends in $pp$ collisions will be violated at sqrt{s_NN} = 14 TeV ? - Predictions from Monte Carlo quark-gluon string model
sqrt{s_NN} = 14 TeV Predictions Monte Carlo quark-gluon string model
2011/1/5
Multiplicity, rapidity and transverse momentum distributions of hadrons produced both in inelastic and non-diffractive pp collisions at energies from ps = 200GeV to 14TeV are studied within the Monte ...
Ridge Formation Induced by Jets in $pp$ Collisions at 7 TeV
Ridge Formation Induced Jets in $pp$ Collisions 7 TeV
2011/1/5
An interpretation of the ridge phenomenon found in pp collisions at 7 TeV is given in terms of
enhancement of soft partons due to energy loss of semihard jets. A description of ridge formation in nuc...
Final state interactions and CP violation in B+- --> pi+- pi-+ pi+- decays
Final state interactions CP violation in B+- --> pi+- pi-+ pi+- decays
2011/1/5
We study CP violation and the contribution of the strong pion-pion interactions in the three-body B± →π±π∓π± decays within a quasi two-body QCD factorization approach. The short distance interac...
Quasistationarity in a model of classical spins with long-range interactions
Quasistationarity model of classical spins long-range interactions
2010/11/17
Systems with long-range interactions, while relaxing towards equilibrium, sometimes
get trapped in long-lived non-Boltzmann quasistationary states (QSS) which have lifetimes that
grow algebraically ...
Interactions of nanorod particles in the strong coupling regime
Interactions of nanorod particles strong coupling regime
2010/11/18
The plasmon coupling in a nanorod dimer obeys the exponential size dependence according to the Universal Plasmon Ruler Equation. However, it was shown recently that such a model does not hold at short...
Prompt and non-prompt J/psi production in pp collisions at sqrt(s) = 7 TeV
Prompt non-prompt J/psi production sqrt(s) = 7 TeV
2011/1/4
The production of J/y mesons is studied in pp collisions at p s = 7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314...
B physics at CDF - the Beauty of hadron collisions
B physics CDF - the Beauty of hadron collisions
2011/1/4
The CDF experiment at the Tevatron p¯p collider established that extensive and detailed exploration of the b–quark dynamics is possible in hadron collisions, with results competitive and suppleme...
Interplay between the small and the large scale structure of spacetime
Interplay small large scale structure of spacetime
2010/12/21
Existence of frame invariant, maximum, time interval T, length L, and mass M is postulated. In the de Sitter universe - (1) the life span of universe,(2) the circumference of universe at the point of ...
W and Z Production in pp Collisions at 7 TeV with the ATLAS Experiment at the LHC
W Z Production in pp Collisions 7 TeV with the ATLAS Experiment LHC
2011/1/4
The observation of W and Z bosons and a measurement of the production cross sections in proton proton collisions at ECM = 7 TeV are presented using data from the ATLAS experiment at the LHC.
Non-perturbative predictions for cold atom Bose gases with tunable interactions
Non-perturbative predictions for cold atom Bose gases tunable interactions
2010/11/19
We derive a theoretical description for dilute Bose gases as a loop expansion in terms of composite- eld propagators by rewriting the Lagrangian in terms of auxiliary elds related to the normal and a...
W and Z Production in pp Collisions at 7TeV with ATLAS
W Z Production pp Collisions 7TeV with ATLAS
2011/1/4
Measurements of W and Z cross-sections in pp collisions at ECM = 7TeV at the Large Hadron Collider are reported from the ATLAS experiment. From an observation of 118 leptonic W candidates, the inclusi...
