Magnon bound states

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August undefined, 2024

Web21 nov. 2024 · We analytically derive an effective Hamiltonian via the many-body perturbation theory for a deeper understanding of such novel bound states and explore … Web28 feb. 2024 · These excitations are superpositions of dipolar magnons and quadrupolar two-magnon bound states. As a result of their topology, such quantum ferromagnets …

Decay rates and energies of free magnons and bound states in ...

Web17 sep. 2024 · Magnon excitations play an important role in understanding quantum magnetism and magnon bound states observed with ultracold atoms in optical lattices. Here, we investigate how gradient magnetic field and periodically modulated spin-exchange strength affect the two-magnon excitations. Web25 sep. 2013 · Bound states of elementary spin waves (magnons) have been predicted to occur in one-dimensional quantum magnets; the observation of two-magnon bound states in a system of ultracold bosonic atoms ... pay a sper fine

The spectrum of the continuous isotropic quantum Heisenberg …

WebThe bound state problems associated with two magnons in a linear chain of spin 1/2 with nearest and next nearest neighbor exchange integrals, J and α J , respectively, are studied. The Hamiltonian is rewritten in terms of the Fermi operators in place of spin operators, and an integral equation to determine the bound state energies is obtained. In the cases … Web17 dec. 1990 · The single-soliton and two-soliton bound-state solutions are given. The results show that the magnon localization and two-magnon bound state are possible in … Web8 dec. 2024 · The two-magnon single-ion bound states occur due to strong anisotropy and the preponderance of even higher order excitations arises from the tendency of the … pay as retail user meaning

Modulation-induced long-range magnon bound states in one …

[PDF] Magnon bound states versus anyonic Majorana excitations …

Web1 jan. 1976 · The magnon bound states consist of several overturned spins travelling together in an otherwise aligned spin assembly. In the linear chain of spin-1/2 particles with the Hamiltonian (1) H =− J ∑ i = 1 N S → i ⋅ S → i + 1 (J > 0, N + 1 ≡ 1) their eigenvalues ɛ B r are (2) ɛ B r = 1 r J (1 − cos K), K being the centre-of-mass ... Web11 aug. 2010 · We investigate the reflection of two-particle bound states of a free open string in the light-cone AdS 5 ×S 5 string sigma model, for large angular momentum J = J 56 and ending on a D7 brane which wraps the entire AdS 5 and a maximal S 3 ⊂ S 5. We use the superspace formalism to analyse fundamental and two-particle bound states in the … pay a sprint bill onlineWeb1 jun. 1970 · Two-Magnon Bound States in the Triangular and Honeycomb Heisenberg Ferromagnets Koh Wada, Takuma Ishikawa and Takehiko Oguchi. Progress of … payassociation

"Web17 jun. 2024 · Quantum mechanically, such a state can be understood as a result of condensation of bound magnon pairs. The presence of such an exotic state is theoretically proposed in various spin systems, including frustrated ferromagnets Chubukov ( 1991 ); Shannon et al. ( 2006 ); Momoi et al. ( 2012 ) and the one-dimensional S = 1 / 2 zigzag … " - Magnon bound states

Magnon bound states

Phys. Rev. B 107, 064429 (2024) - Magnons, magnon bound pairs, …

Web19 dec. 2024 · C. D. Parmee, N. R. Cooper Chains of coupled two-level atoms behave as 1D quantum spin systems, exhibiting free magnons and magnon bound states. While these excitations are well studied for closed systems, little consideration has been given to how they are altered by the presence of an environment. Web27 nov. 2000 · It is defined as the probability to measure a given state ψ〉 of momentum K and energy E in a bound state configuration corresponding to the two magnons being nearest neighbors. These bound...

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Web2 okt. 2024 · DOI: 10.1038/s41467-020-15370-1 Corpus ID: 203626879; Magnon bound states versus anyonic Majorana excitations in the Kitaev honeycomb magnet α-RuCl3 @article{Wulferding2024MagnonBS, title={Magnon bound states versus anyonic Majorana excitations in the Kitaev honeycomb magnet $\alpha$-RuCl3}, author={Dirk Wulferding … Web5 mei 2024 · We find that the energy to create a bound state of two-magnon Δ p becomes lower than the energy to create a single spin flip Δ s near H c 2. In the entire Kitaev spin …

Web3 okt. 2013 · The existence of bound states of elementary spin waves (magnons) in one-dimensional quantum magnets was predicted almost 80 years ago. Identifying signatures of magnon bound states has so far remained the subject of intense theoretical research, and their detection has proved challenging for experiments. Web1 jun. 1970 · Two-Magnon Bound States in the Triangular and Honeycomb Heisenberg Ferromagnets Koh Wada, Takuma Ishikawa and Takehiko Oguchi Progress of Theoretical Physics Supplement No.159 (2005) pp. 77-81 Finite-Field Ground State of an S = 1 Anisotropic Antiferromagnetic Chain Takashi Tonegawa, Kouichi Okunishi, Tôru Sakai …

Web9 mei 2024 · In these systems, the magnon excitations of the high-field saturated state form a bound pair on the bond of J1(effective spin-1 state), which then undergo Bose–Einstein condensation (BEC), much like … Web24 mei 2024 · The magnon peak emerges from the 1P continuum in the magnetic Raman scattering, can be regarded as the bound state of the spinon–antispinon excitations. As schematically summarized in Fig. 1,...

Web1 dec. 2016 · It has to be mentioned that the magnon-bound-state hierarchy is relevant to the glueball spectrum (screening masses) for the gauge field theory (Svetitsky–Yaffe conjecture) [15], [16], [17]. Actually, we show that in the next section, the bound-state hierarchy m 2 , 3 , 4 bears a resemblance to the glueball spectrum for the Z 2 -symmetric …

pay as retail userWeb10 jan. 2024 · In van der Waals (vdW) materials, strong coupling between different degrees of freedom can hybridize elementary excitations into bound states with mixed character1–3. Correctly identifying the ... pay a south carolina traffic ticketWeb30 mrt. 2024 · This bound state is formed via a spectral transfer from the fractionalized continuum through an isosbestic point around 8.75 meV, and does not smoothly connect … pay assist numberWeb5 mei 2024 · We find that the energy to create a bound state of two-magnon Δp becomes lower than the energy to create a single spin flip Δs near Hc2. In the entire Kitaev spin liquid, Δp pay assist contact numberWebKeywords. Three magnon bound state equation; Faddeev's Theory. 1. Introduction The old problem of spin-wave interactions for the Heisenberg Hamiltonian =-½3 2: Sl. Si+5 i,5 (1) (i denotes the lattice sites; 3 joins a site to its nearest neighbours) still retains some inter.est. screenwriting minorWeb17 sep. 2024 · The magnon–magnon correlations clearly show that, aside from NN and NNN bound states, the bound states with relative distance at three and four sites … pay a speed ticket onlineWeb28 mei 2013 · Here we report on the direct observation of two-magnon bound states using in-situ correlation measurements in a one-dimensional Heisenberg spin chain realized … pay as per use