Within quantum mechanics model we study the problem of resummation of an asymptotic perturbation series for bound state parameters via optimization of the perturbative expansion. A possible application of the method to the positronium lifetime calculation is also briefly considered
The density matrix renormalization group (DMRG) is one of the most powerful numerical methods availa...
The improvement of resummation algorithms for divergent perturbative expansions in quantum field the...
A simple method for the calculation of higher orders of the logarithmic perturbation theory for boun...
A pattern of partial resummation of perturbation theory series inspired by analytical continuation i...
A kind of asymptotic expansion for calculation of the (para)positronium decay rate is formulated. Th...
Low bounds to energy eigenvalues in quantum theory problems by partitioning technique for positive p...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
Similarity renormalization group procedure identifies the role of bound states in the low-energy rat...
The accurate calculation of atomic spectra, including radiative corrections, is one of the rather ch...
The accurate calculation of atomic spectra, including radiative corrections, is one of the rather ch...
Positronium annihilation amplitudes that are computed by assuming a factorization approximation with...
An approximation method which combines the perturbation theory with the variational calculation is c...
The density matrix renormalization group (DMRG) is one of the most powerful numerical methods availa...
The improvement of resummation algorithms for divergent perturbative expansions in quantum field the...
A simple method for the calculation of higher orders of the logarithmic perturbation theory for boun...
A pattern of partial resummation of perturbation theory series inspired by analytical continuation i...
A kind of asymptotic expansion for calculation of the (para)positronium decay rate is formulated. Th...
Low bounds to energy eigenvalues in quantum theory problems by partitioning technique for positive p...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
A new general approach is introduced for defining an optimum zero-order Hamiltonian for Rayleigh–Sch...
Similarity renormalization group procedure identifies the role of bound states in the low-energy rat...
The accurate calculation of atomic spectra, including radiative corrections, is one of the rather ch...
The accurate calculation of atomic spectra, including radiative corrections, is one of the rather ch...
Positronium annihilation amplitudes that are computed by assuming a factorization approximation with...
An approximation method which combines the perturbation theory with the variational calculation is c...
The density matrix renormalization group (DMRG) is one of the most powerful numerical methods availa...
The improvement of resummation algorithms for divergent perturbative expansions in quantum field the...
A simple method for the calculation of higher orders of the logarithmic perturbation theory for boun...