Questions tagged [spin-liquid]

In condensed matter physics, quantum spin liquid is a state that can be achieved in a system of interacting quantum spins. The state is referred to as a "liquid" as it is a disordered state possibly with unconventional orders beyond Ginzburg-Landau theory.

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Interpretation of the single particle spectral function in a spin liquid

Experimenter here (fair warning). I've had a question nagging at me for some time revolving around this paper by Tang et al. I don't have a good intuition for what the single electron spectral ...
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Lagrange multiplier in spin liquid mean-field theory (Paper by X.G. Wen)

My question is about a step in this paper: PhysRevB.65.165113 (X.G. Wen) page 6 Or alternatively: PhysRevB.90.174417 page 3. All the papers concerning spin liquids and the projective symmetry group ...
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What is the Kitaev Model and why it became so popular? [closed]

I am seeing Kitaev Model everywhere. It feels like the spin-glass model of our time. How the Kitaev model differ from spin-glass and why it can be used everywhere? Looking at equation 1 here suggests ...
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Why is the projective symmetry group a group?

I am reading the paper from X. Wen about quantum orders and symmetric spin liquids. It can be found here: https://arxiv.org/abs/cond-mat/0107071 The Hamiltonian he is writing about looks like this: \...
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3d spatial string-net model and its plaquette term

Can someone explain the following sentence, saying the difference betweeen the 2d string-net plaquette intersections and 3d string-net plaquette intersections? Thus, for 3d sting-net model, if we ...
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118 views

Fermi “surface” at finite temperature and its measurement in the lab

As we increase the temperature, we know the sharp Fermi surface at zero temperature becomes smeared out at finite temperature $T>0$. (Just think of the Fermi-Dirac distribution, there will be no ...
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The ground state of AFM Heisenberg model $H=+J\displaystyle \sum_{\langle i,j\rangle} \vec{S}_i \cdot \vec{S}_j$ on the triangular lattice?

What is the order -- the ground state of AFM Heisenberg model $H=+J\displaystyle \sum_{\langle i,j\rangle}\vec{S}_i \cdot \vec{S}_j$ on the triangular lattice, with $J>0$ and nearest neighbor ...
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What kind of spin liquids is the Herbertsmithite?

What kind of spin liquids the Herbertsmithite is? Roughly it is a spin-1/2 Heisenberg model on the Kagome lattice with a coupling $J>0$. It seems that there are long mismatches between the theory, ...
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spin ice / spin liquid v.s. quantum spin ice / quantum spin liquid

What are the distinguishment between (1) spin ice, (2) spin liquid and (3) quantum spin ice, (4) quantum spin liquid? Apparently the quantum effect for the later (3) and (4) becomes important. But ...