Publication List


P. Zhu, S. Feng, Y.-M. Lu

Obstruction to broken symmetries in topological flat bands

arXiv:2408.14533 (2024)

P. Zhu*, S. Feng*, K. Wang*, T. Xiang, N. Trivedi

Emergent Majorana metal from a chiral quantum spin liquid

arXiv:2405.12278 (2024)

K. Wang*, S. Feng*, P. Zhu, R. Chi, H.-J Liao, N. Trivedi, T. Xiang

Fractionalization signatures in the dynamics of quantum spin liquids

arXiv:2403.12141 (2024)

I. Lee, J. Cen, O. Molchanov, S. Feng, W. L. Huey, J. V. Tol, J. E. Goldberger, N. Trivedi, H.-Y. Kee, P. C. Hammel

Spin-orbit coupling controlled two-dimensional magnetism in chromium trihalides

arXiv:2405.16709 (2024)

S. Feng

Hidden subsystem symmetry protected states in competing topological orders

Phys. Rev. B 109, 075151 (2024)

S. Feng, A. Agarwala, N. Trivedi

Dimensional reduction of Kitaev spin liquid at quantum criticality

Phys. Rev. Research 6, 013298 (2024)

K. Zhang, S. Feng, Y. D. Lensky, N. Trivedi, E. A. Kim

Machine learning reveals features of spinon Fermi surface

Commun. Phys. 7, 54 (2024)

S. Feng, D. Kong, N. Trivedi

A statistical approach to topological entanglement: Boltzmann machine representation of higher-order irreducible correlation

arXiv:2302.03212 (2023)

S. Feng, A. Agarwala, S. Bhattacharjee, N. Trivedi

Anyon dynamics in field-driven phases of the anisotropic Kitaev model

Phys. Rev. B 108, 035149 (2023)

S. Feng, Y. He, N. Trivedi

Detection of long-range entanglement in gapped quantum spin liquids by local measurements

Phys. Rev. A 106, 042417 (2022)

S. Feng, G. Alvarez, N. Trivedi

Gapless to gapless phase transitions in quantum spin chains

Phys. Rev. B 105, 014435 (2022)

S. Feng, N. D. Patel, P. Kim, J. H. Han, N. Trivedi

Magnetic phase transitions in quantum spin-orbital liquids

Phys. Rev. B 101, 155112 (2020)

T. Xiao, J. Wang, S. Yang, Y. Zhu, D. Li, Z. Wang, S. Feng, L. Bu, X. Zhan, G. Lu

Film-depth-dependent Crystallinity for Light Transmission and Charge Transport in Semitransparent Organic Solar Cells

Journal of Materials Chemistry, A, 2020, 8, 401 (2020)

D. Li, S. Li, W. Lu, S. Feng, P. Wei, Y. Hu, X. Wang, G. Lu

Rapidly measuring charge carrier mobility of organic semiconductor films upon a point-contact four-probes Method

IEEE J-EDS 2018.2872714 (2018)

L. Bu, S. Gao, W. Wang, L. Zhou, S. Feng, X. Chen, D. Yu, S. Li, G. Lu

Film-depth-dependent light absorption and charge transport for polymer electronics: A Case Study on Semiconductor/Insulator Blends by Plasma Etching

Adv. Electron. Mater 2:1600359 (2016)

Quantum Spin Liquids

Beyond solids, liquids and gas, there are numerous quantum phases of mater which lie beyond classic symmetry-breaking paradigm. Quantum spin liquids (QSLs) being among them. QSLs are exotic phases of matter that can show up in some frustrated magnetic (or qubit) systems characterized by a lack of long-range magnetic order down to extremely low temperatures (unlike with conventional magnets) due to strong quantum fluctuations.

qsl figure
Geometrically frustrated spins on a triangular lattice

In addition to this negative definition, QSLs are also characterized by some global invariant, known as topological entanglement, emergent abelian or non-abelian quasi-particles with fractionalized statistics, and ground state degeneracy connected with emergent gauge theories.

Degenercy on Torus
QSLs on 2D lattice can have distinct topologically invariant states of different gauge-equivalent classes