A VARIATIONAL PRINCIPLE FOR OFF DIAGONAL MATRIX ELEMENTS AND ITS LIMITATIONS

[1] AN EXPANSION METHOD FOR CALCULATING ATOMIC PROPERTIES .3. 2S AND 2PI STATES OF LITHIUM SEQUENCE [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 275 (1360) : 492 - +

[2] PROPERTIES OF THE HELIUM ATOM [J]. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1957, 70 (11): : 802 - 808

[3] DALGARNO A, 1955, P ROY SOC LONDON, VA233, P70

[4] HIRSCHFELDER JO, 1964, UNPUB ADV QUANTUM CH, V1

[5] PERCUS J, COMMUNICATION

[6] SCHIFF LI, QUANTUM MECHANICS

[7] SCHWARTZ C, 1959, ANN PHYS NY, V2, P176

[1] AN EXPANSION METHOD FOR CALCULATING ATOMIC PROPERTIES .3. 2S AND 2PI STATES OF LITHIUM SEQUENCE [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1963, 275 (1360) : 492 - +

[2] PROPERTIES OF THE HELIUM ATOM [J]. PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION A, 1957, 70 (11): : 802 - 808

[3] DALGARNO A, 1955, P ROY SOC LONDON, VA233, P70

[4] HIRSCHFELDER JO, 1964, UNPUB ADV QUANTUM CH, V1

[5] PERCUS J, COMMUNICATION

[6] SCHIFF LI, QUANTUM MECHANICS

[7] SCHWARTZ C, 1959, ANN PHYS NY, V2, P176