14.10.+c Quantum circuit model

Single-qubit lasing in the strong-coupling regime

Date: 
2010-11-03
Author(s): 

Stephan André, Pei-Qing Jin, Valentina Brosco, Jared H. Cole, Alessandro Romito, Alexander Shnirman, and Gerd Schön

Reference: 

Phys. Rev. A 82, 053802 (2010)

Unitary circuits for strongly correlated fermions

Date: 
2010-05-28 - 2010-06-01
Reference: 

Carlos Pineda, Thomas Barthel, and Jens Eisert
Phys. Rev. A 81, 050303(R) (2010)
http://link.aps.org/doi/10.1103/PhysRevA.81.050303

We introduce a scheme for efficiently describing pure states of strongly correlated fermions in higher dimensions using unitary circuits featuring a causal cone. A local way of computing local expectation values is presented. We formulate a dynamical reordering scheme, corresponding to time-adaptive Jordan-Wigner transformation, that avoids nonlocal string operators. Primitives of such a reordering scheme are highlighted. Fermionic unitary circuits can be contracted with the same complexity as in the spin case.

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