Wronskian formula for confluent second-order supersymmetric quantum mechanics

Wronskian method and the Schrödinger eigenvalue march

Wronskian method for bound states

Wronskian perturbation theoryWronskian perturbation theory

X-entanglement of PDC photon pairs

X-matrices provide a lower bound of concurrence

X-probability and Irreversibility Paradox

XX model on the circle

XY model on the circle: diagonalization, spectrum, and forerunners of the quantum phase transition

Yang--Baxterizations, Universal Quantum Gates and Hamiltonians

Yang-Mills Equation and Bures Metric

Yangian and Applications

Yangian symmetry in molecule {V6} and four-spin Heisenberg model

Yet another additivity conjecture

Yet another comment on "Nonlocal character of quantum theory"

Young's experiment and the finiteness of information

Young's two-slits experiment with people

Z-States Algebra for a Tunable Multi-Party Entanglement-Distillation Protocol

Zeno and Anti Zeno effect for a two level system in a squeezed bath

Zeno and anti-Zeno effects for photon polarization dephasing