Expression of concern: ‘Revisiting Schrödinger’s fourth-order, real-valued wave equation and the implication from the resulting energy levels’ Makris

Key Points

• This correspondence addresses potential errors in the analysis of Schrödinger's fourth-order wave equation.
• Examination of previous correspondence regarding the wave equation.
• Assessment of energy level implications from the equation.
• Identification of potential errors in the wave equation analysis.
• Implications of errors on the interpretation of energy levels.