spin chain
Super spin chain coherent state actions and $AdS_5 \times S^5$ superstring
... the spin chain side and the string theory ...the spin-chain dynamics in terms of a coherent-state path integral and then compare the fermionic action that appears there in a continuum limit ...
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The all-loop integrable spin-chain for strings on AdS3 × S 3 × T 4: The massive sector
... The centrally extended algebra. When we take quantum corrections into account, the spin-chain Hamiltonian H should depend on the coupling constant and on the momen- tum of the excitations. This requires the ...
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How to fold a spin chain : Integrable boundaries of the Heisenberg XXX and Inozemtsev hyperbolic models
... a spin chain with a magnetic boundary, a spin chain with an open boundary, and a double-row model with a diagonal ...XXX spin chain the corresponding models are ...
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Quantum spin chain dissipative mean field dynamics
... The non-linearity of the fluctuation dynamics conflicts with the fact that any dissipative quantum dynamics should be described by a semigroup of linear, completely positive maps. Notice that, even if systems with ...
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Robust state stansfer and rotation through a spin chain via dark passage
... Similar to the original context of quantum optics, the dark passage method can be extended to the spin chains with more than three spins in some ways. Among them, two methods are of importance. One is Alternating ...
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The Scaling of Entanglement Entropy for One Spatial XXZ Spin Chain
... We investigate the scaling of entanglement entropy for one spatial XXZ spin chain by using matrix product states to approximate ground states. The entanglement entropy scales logarithmically with a ...
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Tailoring spin chain dynamics for fractional revivals
... transfer spin chain so that a separa- ble input excitation is output over multiple ...the spin chain, known as frac- tional revivals, demonstrating that spin chains are capable of ...
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Energy transport in a disordered spin chain with broken U(1) symmetry : diffusion, subdiffusion, and many body localization
... In this paper we investigate the physics of the disor- dered spin-1/2 XYZ chain. We choose this model be- cause it is a quantum spin chain in which all conserva- tion laws are violated except ...
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Permutation operators, entanglement entropy, and the XXZ spin chain in the limit Δ-> -1
... quantum spin chains has been extensively studied in the literature from different points of ...quantum spin chain divided in two parts, both of which are infinitely ...the spin chain ...
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Koornwinder polynomials and the XXZ spin chain
... XXZ spin chain. One of the main aims in the study of spin chain models is to find the spectrum of the quantum Hamiltonian, a distinguished operator acting on the state space in which the ...
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A spin chain model with non-Hermitian interaction: the Ising quantum spin chain in an imaginary field
... Abstract: We investigate a lattice version of the Yang-Lee model which is character- ized by a non-Hermitian quantum spin chain Hamiltonian. We propose a new way to implement PT -symmetry on the lattice, ...
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Driven dissipative spin chain model based on exciton polariton condensates
... infinite chain of driven-dissipative condensate spins with uniform nearest-neighbor coherent coupling is solved analytically and investigated ...spontaneous spin bifurcation (becoming magnetized) forming a ...
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Form Factors, Integrability and the AdS/CFT Correspondence
... a spin chain with nearest-neighbour interactions, and the spin rep- resentation in each site depends on the chosen ...the spin chains contributing to higher loops have long range interactions, ...
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Nested Algebraic Bethe Ansatz for Open Spin Chains with Even Twisted Yangian Symmetry
... Remark 4.1. Recall from Section 2.2 that K ∈ End( C 2n ) satisfying K t = εK with ε = +1 or ε = −1 is a matrix solution to the reflection equation. The dual reflection equation is obtained by redefining u → −u −ρ and v → ...
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Unconventional field induced spin gap in an S = 1/2 chiral staggered chain
... field-induced spin gap and anisotropic staggered susceptibility [7, ...tron spin resonance (ESR) in the SG spin chain [pym- Cu(NO 3 ) 2 (H 2 O) 2 ] (pym = pyrimidine) [11, ...
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Finite size Effects from Giant Magnons
... In general, however, we expect the simple addition formula for the energy of a composite closed string to be correct only at infinite J where all the exponential corrections in (3.16) vanish. If so then at finite J the ...
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Giant magnons in TsT transformed AdS 5 x S^5
... The asymptotic Bethe ansatz is not exact and for finite J one expects to find a non-trivial γ-dependence already in the large string tension limit where classical string considerations can be used. In particular, it is ...
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Boundary quantum Knizhnik-Zamolodchikov equations and Bethe vectors
... XXZ spin- 1 2 chain R-matrices, fix uniform notations and recall the definition of the diagonal K-matrices and the basic operations of the R- and ...
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Integrability, spin-chains and the AdS(3)/CFT2 correspondence
... the spin-chain Hamiltonian will diverge in this ...the spin-chain remains finite in the α → 1 ...the spin-chain in this limit should yield exact information about the missing ...
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On the spectrum of AdS₃ × S³× T⁴ strings with Ramond–Ramond flux
... a spin chain whose spectrum is encoded in the Bethe ...this spin chain corresponds to the reducible spin chain first proposed at weak coupling in ...to spin-chain ...
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