Colloquium: Exactly solvable Richardson-Gaudin models for many-body quantum systems

J Dukelsky, S Pittel, G Sierra - Reviews of modern physics, 2004 - APS
The use of exactly solvable Richardson-Gaudin models to describe the physics of systems
with strong pair correlations is reviewed. The article begins with a brief discussion of …

Electron spin dynamics in quantum dots and related nanostructures due to hyperfine interaction with nuclei

J Schliemann, A Khaetskii, D Loss - Journal of Physics …, 2003 - iopscience.iop.org
We review and summarize recent theoretical and experimental work on electron spin
dynamics in quantum dots and related nanostructures due to hyperfine interaction with …

Exactly-solvable models derived from a generalized Gaudin algebra

G Ortiz, R Somma, J Dukelsky, S Rombouts - Nuclear Physics B, 2005 - Elsevier
We introduce a generalized Gaudin Lie algebra and a complete set of mutually commuting
quantum invariants allowing the derivation of several families of exactly solvable …

Quantum quench phase diagrams of an -wave BCS-BEC condensate

EA Yuzbashyan, M Dzero, V Gurarie, MS Foster - Physical Review A, 2015 - APS
We study the dynamic response of an s-wave BCS-BEC (atomic-molecular) condensate to
detuning quenches within the two-channel model beyond the weak-coupling BCS limit. At …

Many-body characterization of particle-conserving topological superfluids

G Ortiz, J Dukelsky, E Cobanera, C Esebbag… - Physical review …, 2014 - APS
What distinguishes trivial superfluids from topological superfluids in interacting many-body
systems where the number of particles is conserved? Building on a class of integrable …

Algebraic Bethe ansatz method for the exact calculation of energy spectra and form factors: applications to models of Bose–Einstein condensates and metallic …

J Links, HQ Zhou, RH McKenzie… - Journal of Physics A …, 2003 - iopscience.iop.org
In this review we demonstrate how the algebraic Bethe ansatz is used for the calculation of
the energy spectra and form factors (operator matrix elements in the basis of Hamiltonian …

Nonperturbative master equation solution of central spin dephasing dynamics

E Barnes, Ł Cywiński, S Das Sarma - Physical review letters, 2012 - APS
We solve the long-standing central spin problem for a general set of inhomogeneous bath
couplings and a large class of initial bath states. We compute the time evolution of the …

Quantum phase diagram of the integrable fermionic superfluid

SMA Rombouts, J Dukelsky, G Ortiz - Physical Review B—Condensed Matter …, 2010 - APS
We determine the zero-temperature quantum phase diagram of apx+ ipy pairing model
based on the exactly solvable hyperbolic Richardson-Gaudin model. We present analytical …

Exact quantum dynamics of XXZ central spin problems

WB He, S Chesi, HQ Lin, XW Guan - Physical review B, 2019 - APS
We obtain analytically close forms of benchmark quantum dynamics of the collapse and
revival (CR), the reduced density matrix, Von Neumann entropy, and fidelity for the XXZ …

Superconducting correlations in metallic nanoparticles: Exact solution of the BCS model by the algebraic Bethe ansatz

HQ Zhou, J Links, RH McKenzie, MD Gould - Physical Review B, 2002 - APS
Superconducting pairing of electrons in nanoscale metallic particles with discrete energy
levels and a fixed number of electrons is described by the reduced Bardeen, Cooper, and …