Shengtao Jiang

All Publications

• Finite-temperature crossover from coherent magnons to energy superdiffusion in the PXP model PHYSICAL REVIEW B Jiang, S., Desaules, J., Ljubotina, M., Scaffidi, T. 2026; 114 (8)

  View details for DOI 10.1103/mx9k-1mc6

  View details for Web of Science ID 001865287600001

• Competing States in the S=1/2 Triangular-Lattice J_{1}-J_{2} Heisenberg Model: A Dynamical Density-Matrix Renormalization Group Study. Physical review letters Jiang, S., White, S. R., Kivelson, S. A., Jiang, H. C. 2026; 137 (5): 056703

  Abstract

  Previous studies of the S=1/2 triangular-lattice J_{1}-J_{2} Heisenberg antiferromagnet have inferred the existence of a nonmagnetic ground-state phase for an intermediate range of J_{2}, but disagree concerning whether it is a gapped Z_{2} quantum spin liquid (QSL), a gapless (Dirac) QSL, or a weakly symmetry-broken phase. Using an improved dynamical density-matrix renormalization group method, we investigate the relevant intermediate J_{2} regime for cylinders with circumferences from 6 to 9. Depending on the initial state and boundary conditions, we find two distinct variational states. The higher energy state is consistent with a Dirac QSL. In the lower-energy state, both the static and dynamical properties are qualitatively similar to the magnetically ordered state at J_{2}=0, suggestive of either a weakly magnetically ordered non-QSL or a gapped QSL proximate to a continuous transition to such an ordered state.

  View details for DOI 10.1103/zmnz-tkq2

  View details for PubMedID 42606429

• Quantifying the phase diagram and Hamiltonian of <i>S</i>=1/2 kagome antiferromagnets: bridging theory and experiment NPJ COMPUTATIONAL MATERIALS Jiang, S., Campello, A. C., He, W., Wen, J., Pajerowski, D. M., Lee, Y. S., Jiang, H. 2026; 12 (1)

  View details for DOI 10.1038/s41524-026-01959-5

  View details for Web of Science ID 001689586900001

• Rethinking α-RuCl₃: Parameters, models, and phase diagram PHYSICAL REVIEW B Moeller, M., Maksimov, P. A., Jiang, S., White, S. R., Valenti, R., Chernyshev, A. L. 2025; 112 (10)

  View details for DOI 10.1103/hflp-41lj

  View details for Web of Science ID 001724610200001

• Strong Kitaev Interaction in BaCo_{2}(AsO_{4})_{2}. Physical review letters Maksimov, P. A., Jiang, S., Regnault, L. P., Chernyshev, A. L. 2025; 135 (6): 066703

  Abstract

  The inelastic neutron scattering results and their analysis unequivocally point to a dominant Kitaev interaction in the honeycomb-lattice cobaltate BaCo_{2}(AsO_{4})_{2}. Our anisotropic-exchange model closely describes all available neutron scattering data in the material's field-polarized phase. The density-matrix renormalization group results for our model are in close accord with the unusual double-zigzag magnetic order and the low in-plane saturation field of BaCo_{2}(AsO_{4})_{2}.

  View details for DOI 10.1103/k1gq-k8m7

  View details for PubMedID 40864925

• Ground-state-based model reduction with unitary circuits PHYSICAL REVIEW B Jiang, S., White, S. R. 2025; 112 (4)

  View details for DOI 10.1103/h1pt-v5kz

  View details for Web of Science ID 001540758000005

• Phase Diagram of the Easy-Axis Triangular-Lattice J_{1}-J_{2} Model. Physical review letters Gallegos, C. A., Jiang, S., White, S. R., Chernyshev, A. L. 2025; 134 (19): 196702

  Abstract

  The phase diagram of the S=1/2 easy-axis triangular-lattice J_{1}-J_{2} model is investigated using the density-matrix renormalization group and analytical insights. We find a significant spin-liquid region extending from the Heisenberg limit and residing between the Y phase-known as the magnetic analogue of the "supersolid"-and collinear stripe phase. The order parameters of the supersolid are analyzed and an understanding of its lack of a ferromagnetic moment is suggested.

  View details for DOI 10.1103/PhysRevLett.134.196702

  View details for PubMedID 40446245

• Emergent Bose liquid: A generic quantum state of matter alternative to Fermi liquid PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS Lang, Z., Hegg, A., Yildirim, Y., Jiang, S., Zou, L., Yue, X., Zeng, T., Hou, J., Ku, W. 2025; 634

  View details for DOI 10.1016/j.physc.2025.1354723

  View details for Web of Science ID 001509647100001

• Quantum phases in the honeycomb-lattice <i>J</i>₁-<i>J</i>₃ ferro-antiferromagnetic model PHYSICAL REVIEW B Jiang, S., White, S. R., Chernyshev, A. L. 2023; 108 (18)

  View details for DOI 10.1103/PhysRevB.108.L180406

  View details for Web of Science ID 001112321100001

• Density matrix renormalization group based downfolding of the three-band Hubbard model: Importance of density-assisted hopping PHYSICAL REVIEW B Jiang, S., Scalapino, D. J., White, S. R. 2023; 108 (16)

  View details for DOI 10.1103/PhysRevB.108.L161111

  View details for Web of Science ID 001195011500001

• Where is the Quantum Spin Nematic? PHYSICAL REVIEW LETTERS Jiang, S., Romhanyi, J., White, S. R., Zhitomirsky, M. E., Chernyshev, A. L. 2023; 130 (11): 116701

  Abstract

  We provide strong evidence of the spin-nematic state in a paradigmatic ferro-antiferromagnetic J_{1}-J_{2} model using analytical and density-matrix renormalization group methods. In zero field, the attraction of spin-flip pairs leads to a first-order transition and no nematic state, while pair repulsion at larger J_{2} stabilizes the nematic phase in a narrow region near the pair-condensation field. A devil's staircase of multipair condensates is conjectured for weak pair attraction. A suppression of the spin-flip gap by many-body effects leads to an order-of-magnitude contraction of the nematic phase compared to naïve expectations. The proposed phase diagram should be broadly valid.

  View details for DOI 10.1103/PhysRevLett.130.116701

  View details for Web of Science ID 000954803100012

  View details for PubMedID 37001099

• Pairing properties of the <i>t</i>-<i>t</i>′-<i>t</i>"-<i>J</i> model PHYSICAL REVIEW B Jiang, S., Scalapino, D. J., White, S. R. 2022; 106 (17)

  View details for DOI 10.1103/PhysRevB.106.174507

  View details for Web of Science ID 000893265700002

• Ground-state phase diagram of the <i>t</i>-<i>t</i>′-<i>J</i> model PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA Jiang, S., Scalapino, D. J., White, S. R. 2021; 118 (44)

  Abstract

  We report results of large-scale ground-state density matrix renormalization group (DMRG) calculations on t-[Formula: see text]-J cylinders with circumferences 6 and 8. We determine a rough phase diagram that appears to approximate the two-dimensional (2D) system. While for many properties, positive and negative [Formula: see text] values ([Formula: see text]) appear to correspond to electron- and hole-doped cuprate systems, respectively, the behavior of superconductivity itself shows an inconsistency between the model and the materials. The [Formula: see text] (hole-doped) region shows antiferromagnetism limited to very low doping, stripes more generally, and the familiar Fermi surface of the hole-doped cuprates. However, we find [Formula: see text] strongly suppresses superconductivity. The [Formula: see text] (electron-doped) region shows the expected circular Fermi pocket of holes around the [Formula: see text] point and a broad low-doped region of coexisting antiferromagnetism and d-wave pairing with a triplet p component at wavevector [Formula: see text] induced by the antiferromagnetism and d-wave pairing. The pairing for the electron low-doped system with [Formula: see text] is strong and unambiguous in the DMRG simulations. At larger doping another broad region with stripes in addition to weaker d-wave pairing and striped p-wave pairing appears. In a small doping region near [Formula: see text] for [Formula: see text], we find an unconventional type of stripe involving unpaired holes located predominantly on chains spaced three lattice spacings apart. The undoped two-leg ladder regions in between mimic the short-ranged spin correlations seen in two-leg Heisenberg ladders.

  View details for DOI 10.1073/pnas.2109978118

  View details for Web of Science ID 000720890900002

  View details for PubMedID 34706937

  View details for PubMedCentralID PMC8612218

• Non-Fermi-liquid scattering against an emergent Bose liquid: Manifestations in the kink and other exotic quasiparticle behavior in the normal-state cuprate superconductors PHYSICAL REVIEW B Jiang, S., Zou, L., Ku, W. 2019; 99 (10)

  View details for DOI 10.1103/PhysRevB.99.104507

  View details for Web of Science ID 000460720900006