129 citations · 213 across the 4 of their papers we have counts for
4 papers
Decoherence of a Josephson qubit due to coupling to two level systems
Li-Chung Ku, Clare C. Yu
Noise and decoherence are major obstacles to the implementation of Josephson junction qubits in quantum computing. Recent experiments suggest that two level systems (TLS) in the ox…
Quantum Dynamics of Polaron Formation
Li-Chung Ku, S. A. Trugman
The formation of a polaron quasiparticle from a bare electron is studied in the framework of the Holstein model of electron-phonon coupling. Using Schrödinger's formalism, we calcu…
Numerical study of the Jahn-Teller polaron and bipolaron
S. El Shawish, J. Bonca, Li-Chung Ku +1
The properties of the polaron and bipolaron are explored in the 1D Jahn-Teller model with dynamical quantum phonons. The ground-state properties of the polaron and bipolaron are co…
Dimensionality effects on the Holstein polaron
Li-Chung Ku, S. A. Trugman, J. Bonca
Based on a recently developed variational method, we explore the properties of the Holstein polaron on an infinite lattice in dimensions, where . The computatio…