Spin chains and the LL model
Spin dynamics of quantum spin ladders and chains
... Hubbard model calculations would enable a link between the size of the gaps in the dispersion and the periodic potential arising from the presence of the ...our model and a comparison to theory a high ...
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The geometry of antiferromagnetic spin chains
... a spin chain can be built with a continuum limit described by the sigma model with this flag manifold as its target ...this spin chain is given by (52), ...
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Symmetry Protected Topological Phases of Spin Chains
... AKLT model. 3,4 It is well known that the AKLT model realizes the Haldane phase of S = 1 spin ...two spin-1/2 degrees of freedom at the edges of the ...
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Topologically protected localised states in spin chains
... (SSH) model was irst presented in 1979, to describe soliton formation in poly- acetylene 12 ...this model the presence of the phonon-electron interaction causes the distortion (dimerization) of the lattice ...
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Form factors of integrable Heisenberg (higher) spin chains
... alternating spin chains, first studied in [45, 46, 48] and more recently in [49], and impurity systems, such as the Kondo model [51, 52] and the systems considered in [50, 53, 63], seem specially ...
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Quantum correlations in spin chains and highly symmetric states
... XY Model Entanglement and quantum discord (QD) have been shown to identify the critical points (CPs) of QPTs with success in several different critical spin chains, both at zero [47, 66, 73–83] and ...
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The classical-quantum divergence of complexity in modelling spin chains
... Conventional studies only consider building clas- sical models. Yet, recent advances show that even when modelling the same classical process, a quan- tum model may require less input information [12, 13, 14, 15, ...
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Spin Order and Phase Transitions in Chains of Polariton Condensates
... the spin states of closed chains of four- and eight-polariton ...small chains, the nonequilibrium driven-dissipative spin lattice gives rise to a unique paired spin (paired-FM) ordered ...
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Quasiparticles in quantum spin chains with long-range interactions
... On the other side of the phase transition, in the symmetry-broken phase, the elementary excitations can have a topological nature. Indeed, in the nearest- neighbour limit it is known that the low-energy quasipar- ticles ...
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Quantum information spreading in random spin chains with topological order
... the model describing that quantum sys- tem, and stability of stabilizer can be predicted by the knowledge of the phase ...Ising model studied in ...Ising spin chain in this work, and the random ...
Self assembling tensor networks and holography in disordered spin chains
... Heisenberg model naturally describes a tree tensor network (TTN) with an irregular structure defined by the strength of the ...disorder-averaged spin-spin correlation scales with the average path ...
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Spin flip inelastic electron tunneling spectroscopy in atomic chains
... describing the magnetic interaction. 9 This is an intrinsic many-body approach, which in principle contains all the ingredients needed for solving the problem, once the various transfer rates are known. As such it ...
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A nonequilibrium quantum phase transition in strongly coupled spin chains
... the model with time-dependent matrix product states techniques (t-MPS) [67, ...the spin current, which enables the characterization of the three different trans- port ...
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Quantum state transfer in spin chains with q-deformed interaction terms
... 4 Spin chains related to other orthogonal polynomials of q-hyper- geometric type The q-Krawtchouk polynomials described in the previous section are not the only q-deforma- tions of ordinary Krawtchouk ...
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Robust quantum entanglement generation and generation-plus-storage protocols with spin chains
... The model we have presented is simple, demonstrates high fidelity for quantum state transfer and entanglement gener- ation, and exhibits significant resilience against fabrication errors and timing ...the ...
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Robust quantum entanglement generation and generation-plus-storage protocols with spin chains
... to model local fabrication errors is to consider energy perturbations affecting the sites them- selves, and we do this by adding random diagonal disor- der to the ...
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Universal corrections to the entanglement entropy in gapped quantum spin chains: a numerical study
... A numerical study of the Ising model has the advan- tage that a free fermion map can be used to perform computations in the thermodynamic regime. This tech- nique is used and explained in much detail in [9] and it ...
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A direct proof of dimerization in a family of SU(n) invariant quantum spin chains
... Potts model itself, it seemed worthwhile to look for a direct proof of the dimerization, bypassing establishing more details of the relationship between the various ...the model away from the self-dual ...
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Nested Algebraic Bethe Ansatz for Open Spin Chains with Even Twisted Yangian Symmetry
... A, B, C and D, that are matrix analogous of the conventional creation, annihilation and diagonal operators of the six-vertex model. Indeed, the exchange relations between these matrix operators turn out to be ...
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Nested algebraic Bethe ansatz for open spin chains with even twisted Yangian symmetry
... this model a Y ± (gl 2n ) system. Studying the spectral problem of spin chains with orthogonal and symplectic symmetries requires elaborate algebraic methods: the usual nesting approach for a gl n ...
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