D. Gioev and I. Klich, “Entanglement entropy of fermions in any dimension and the Widom conjecture,” Phys. Rev. Lett. 96, 100503 (2006)
O. Kenneth and I. Klich, “Opposites Attract  A Theorem About The Casimir Force,” Phys. Rev. Lett. 97 (2006) 160401
J. Keeling, I. Klich and L. S. Levitov, “Minimal excitation states of electrons in onedimensional wires,” Phys. Rev. Lett. 97, 116403 (2006)
I. Klich, C. Lannert, G. Refael, “Supercurrent survival under a RosenZener quench of hard core bosons,” Phys. Rev. Lett. 99, 205303 (2007)
I. Klich and L. S. Levitov, “Quantum Noise as an Entanglement Meter,”, Phys. Rev. Lett. 102, 100502 (2009)
I Klich, “On the stability of topological phases on a lattice”, Annals of Physics, 325, 10 (2010)
