121 citations · 691 across the 43 of their papers we have counts for
44 papers
Quantum coherence and spin nematic to nematic quantum phase transitions in biquadratic spin-1 and -2 XY chains with rhombic single-ion anisotropy
Rui Mao, Yan-Wei Dai, Sam Young Cho +1
We investigate quantum phase transitions and quantum coherence in infinite biquadratic spin-1 and -2 XY chains with rhombic single-ion anisotropy. All considered coherence measures…
Critical exponents of block-block mutual information in one-dimensional infinite lattice systems
Yan-Wei Dai, Xi Hao Chen, Sam Young Cho +1
We study the mutual information between two lattice-blocks in terms of von Neumann entropies for one-dimensional infinite lattice systems. Quantum -state Potts model and transve…
Singularity of relativistic vortex beam and proper relativistic observables
Yeong Deok Han, Taeseung Choi, Sam Young Cho
We have studied the phase singularity of the relativistic vortex beams for the two sets of relativistic operators. One includes the new spin and orbital angular momentum (OAM) oper…
Spin operators and representations of the Poincaré group
Taeseung Choi, Sam Young Cho
We present the rigorous derivation of covariant spin operators from a general linear combination of the components of the Pauli-Lubanski vector. It is shown that only two spin oper…
Universal scaling relationship between classical and quantum correlations in critical quantum spin chains
Yan-Wei Dai, Xi-Hao Chen, Sam Young Cho +2
We numerically investigate classical and quantum correlations in one-dimensional quantum critical systems. The infinite matrix product state (iMPS) representation is employed in or…
Finite-temperature fidelity and von Neumann entropy in the honeycomb spin lattice with quantum Ising interaction
Yan-Wei Dai, Qian-Qian Shi, Sam Young Cho +2
The finite temperature phase diagram is obtained for an infinite honeycomb lattice with spin- Ising interaction by using thermal-state fidelity and von Neumann entropy bas…