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Non-gaussian Noise in Quantum Spin Glasses and Interacting Two-level Systems
A. K. Nguyen, S. M. Girvin
We study a general model for non-gaussian noise based on an infinite range quantum Ising spin system in the paramagnetic state, or equivalently, interacting two-level classic…
Continuous Quantum Phase Transitions
S. L. Sondhi, S. M. Girvin, J. P. Carini +1
A quantum system can undergo a continuous phase transition at the absolute zero of temperature as some parameter entering its Hamiltonian is varied. These transitions are particula…
Spontaneous Interlayer Coherence in Double-Layer Quantum Hall Systems: Symmetry Breaking Interactions, In-Plane Fields and Phase Solitons
Kun Yang, K. Moon, Lotfi Belkhir +5
At strong magnetic fields double-layer two-dimensional-electron-gas systems can form an unusual broken symmetry state with spontaneous inter-layer phase coherence. The system can b…
Multi-Component Quantum Hall Systems: The Sum of their Parts and More
S. M. Girvin, A. H. MacDonald
The physics of the fractional quantum Hall effect is the physics of interacting electrons confined to a macroscopically degenerate Landau level. In this Chapter we discuss the theo…
Spontaneous Inter-layer Coherence in Double-Layer Quantum-Hall Systems I: Charged Vortices and Kosterlitz-Thouless Phase Transitions
K. Moon, H. Mori, Kun Yang +5
At strong magnetic fields double-layer two-dimensional-electron-gas systems can form an unusual broken symmetry state with spontaneous inter-layer phase coherence. In this paper we…
Persistent Current of a One-Dimensional Wigner Crystal-Ring
I. V. Krive, R. I. Shekhter, S. M. Girvin +1
We calculate the magnetic moment (`persistent current') in a strongly correlated electron system --- a Wigner crystal --- in a one-dimensional ballistic ring. The flux- and tempera…