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Open Quantum Systems Decoherence
Superconducting Qubits
Sharp signature of a dx2-y2 quantum critical point in the Hall coefficient of cuprate superconductors.
PubMed
Authors: Chakravarty S, Nayak C, Tewari S, Yang X
Year
2002
Paper ID
13057
Status
Peer-reviewed
Abstract Read
~2 min
Abstract Words
110
Citations
N/A
Abstract
We study the behavior of the Hall coefficient, R(H), in a system exhibiting dx(2)(-y(2)) density-wave order in a regime in which the carrier concentration, x, is tuned to approach a quantum critical point at which the order is destroyed. At the mean-field level, we find that n(Hall)=1/R(H) evinces a sharp signature of the transition. There is a kink in n(Hall) at the critical value of the carrier concentration, x(c); as the critical point is approached from the ordered side, the slope of n(Hall) diverges. Hall transport experiments in the cuprates, at high magnetic fields sufficient to destroy superconductivity, should reveal this effect.
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- We study the behavior of the Hall coefficient, R(H), in a system exhibiting dx(2)(-y(2)) density-wave order in a regime in which the carrier concentration, x, is tuned to...
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