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20012008
most citedDynamics of Loschmidt echoes and fidelity decay

629 citations · 850 across the 17 of their papers we have counts for

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Showing 2007Show all

7 papers · 1 filter

nlin.CD200717 cited

Surprising relations between parametric level correlations and fidelity decay

H. Kohler, I. Smolyarenko, C. Pineda +3

Unexpected relations between fidelity decay and cross form--factor, i.e., parametric level correlations in the time domain are found both by a heuristic argument and by comparing e…

quant-ph20071 cited

Random matrix models for decoherence and fidelity decay in quantum information systems

Carlos Pineda, Thomas H. Seligman

This course aims to introduce the student to random matrix models for decoherence and fidelity decay. They present a very powerful alternate approach, that emphasizes the disordere…

quant-ph200713 cited

The two-body random spin ensemble and a new type of quantum phase transition

Iztok Pizorn, Tomaz Prosen, Stefan Mossmann +1

We study the properties of a two-body random matrix ensemble for distinguishable spins. We require the ensemble to be invariant under the group of local transformations and analyze…

quant-ph20075 cited

A trivial observation on time reversal in random matrix theory

L. Kaplan, F. Leyvraz, C. Pineda +1

It is commonly thought that a state-dependent quantity, after being averaged over a classical ensemble of random Hamiltonians, will always become independent of the state. We point…

quant-ph200723 cited

Decoherence of an -qubit quantum memory

Thomas Gorin, Carlos Pineda, Thomas H. Seligman

We analyze decoherence of a quantum register in the absence of non-local operations i.e. of non-interacting qubits coupled to an environment. The problem is solved in terms of…

quant-ph200742 cited

Decoherence of two qubit systems: A random matrix description

C. Pineda, T. Gorin, T. H. Seligman

We study decoherence of two non-interacting qubits. The environment and its interaction with the qubits are modelled by random matrices. Decoherence, measured in terms of purity, i…