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We analyze a model of quantum nets and show it has non-abelian topological order of doubled Fibonacci type. The ground state has the same topological behavior as that of the corresponding string-net model, but our Hamiltonian can be defined…

统计力学 · 物理学 2013-11-27 Paul Fendley , Sergei V. Isakov , Matthias Troyer

We have studied the $Z_2$ topological number defined by the Berry phase for the gapped frustrated systems including the orthogonal dimer model which has a direct product state of local quantum clusters as the exact ground state. The $Z_2$…

材料科学 · 物理学 2015-05-27 Isao Maruyama , Sho Tanaya , Mitsuhiro Arikawa , Yasuhiro Hatsugai

We investigate a supersolid state in hardcore boson models on the face-centered-cubic (FCC) lattice. The supersolid state is characterized by a coexistence of crystalline order and superfluidity. Using a quantum Monte Carlo method based on…

超导电性 · 物理学 2009-11-11 Takahumi Suzuki , Naoki Kawashima

We update our numerical investigation of topological structures around static quarks in pure gauge QCD by results of the first runs including dynamical quarks. Simulations were performed on an $8^3\times4$ lattice, with $SU(3)$ Wilson…

高能物理 - 格点 · 物理学 2008-11-26 M. Faber , H. Markum , S. Olejnik , W. Sakuler

The $i$-dimensional plaquette random-cluster model on a finite cubical complex is the random complex of $i$-plaquettes with each configuration having probability proportional to $$p^{\text{# of plaquettes}}(1-p)^{\text{# of complementary…

概率论 · 数学 2023-08-16 Paul Duncan , Benjamin Schweinhart

We build exactly solvable lattice Hamiltonians for fermionic symmetry-protected topological (SPT) phases in (3+1)D classified by group supercohomology. A central benefit of our construction is that it produces an explicit finite-depth…

强关联电子 · 物理学 2021-01-26 Yu-An Chen , Tyler D. Ellison , Nathanan Tantivasadakarn

The physical realization of $\mathbb Z_2$ topological order as encountered in the paradigmatic toric code has proven to be an elusive goal. We predict that this phase of matter can be realized in a two-dimensional array of Rydberg atoms…

强关联电子 · 物理学 2021-08-31 Ruben Verresen , Mikhail D. Lukin , Ashvin Vishwanath

ZrTe$_3$ is a prototypical quasi-one-dimensional compound undergoing a charge density wave transition via a very sharp Kohn anomaly in phonon momentum space. While Fermi surface geometry has long been considered the primary driver of the…

材料科学 · 物理学 2026-05-11 Josu Diego , Matteo Calandra

Thouless charge pumping protocol provides an effective route for realizing topological particle transport. To date, the first-order and higher-order topological pumps, exhibiting transitions of edge-bulk-edge and corner-bulk-corner states,…

介观与纳米尺度物理 · 物理学 2023-09-11 Tianzhi Xia , Yuzeng Li , Qicheng Zhang , Xiying Fan , Meng Xiao , Chunyin Qiu

We study the interplay between topological and conventional long range order of attractive fermions in a time reversal symmetric Hofstadter lattice using quantum Monte Carlo simulations, focussing on the case of one-third flux quantum per…

强关联电子 · 物理学 2014-11-11 Lei Wang , Hsiang-Hsuan Hung , Matthias Troyer

Starting from the mean-field solution of a spin-orbital model of LiNiO$_2$, we derive an effective quantum dimer model (QDM) that lives on the triangular lattice and contains kinetic terms acting on 4-site plaquettes and 6-site loops. Using…

强关联电子 · 物理学 2009-11-11 Francois Vernay , Arnaud Ralko , Federico Becca , Frederic Mila

We characterize phases of the compass ladder model by using degenerate perturbation theory, symmetry fractionalization, and numerical techniques. Through degenerate perturbation theory we obtain an effective Hamiltonian for each phase of…

强关联电子 · 物理学 2017-11-29 R. Haghshenas , A. Langari , A. T. Rezakhani

After exploring much on two-dimensional higher-order topological superconductors (HOTSCs) hosting Majorana corner modes (MCMs) only, we propose a simple fermionic model based on a three-dimensional topological insulator proximized with…

介观与纳米尺度物理 · 物理学 2021-10-13 Arnob Kumar Ghosh , Tanay Nag , Arijit Saha

We study the quantum phases of a three-color Hubbard model that arises in the dynamics of the p-band orbitals of spinless fermions in an optical lattice. Strong, color-dependent interactions are induced by an optical Feshbach resonance.…

In this work, we present the first implementation of the face-centered cubic (FCC) lattice model for protein structure prediction with a quantum algorithm. Our motivation to encode the FCC lattice stems from our observation that the FCC…

We develop the density matrix renormalization group approach to systematically identify the topological order of the quantum spin liquid (QSL) through adiabatically obtaining different topological sectors of the QSL on an infinite cylinder.…

强关联电子 · 物理学 2014-02-12 Yin-Chen He , D. N. Sheng , Yan Chen

The periodically driven quantum Ising chain has recently attracted a large attention in the context of Floquet engineering. In addition to the common paramagnet and ferromagnet, this driven model can give rise to new topological phases. In…

量子气体 · 物理学 2017-07-26 Angelo Russomanno , Bat-el Friedman , Emanuele G. Dalla Torre

We propose an exactly solvable lattice Hamiltonian model of topological phases in $3+1$ dimensions, based on a generic finite group $G$ and a $4$-cocycle $\omega$ over $G$. We show that our model has topologically protected degenerate…

强关联电子 · 物理学 2015-07-02 Yidun Wan , Juven Wang , Huan He

We present a comprehensive analysis of the emerging order and chaos and enduring symmetries, accompanying a generic (high-barrier) first-order quantum phase transition (QPT). The interacting boson model Hamiltonian employed, describes a QPT…

核理论 · 物理学 2014-10-01 M. Macek , A. Leviatan

In this review, we discuss various properties of topological solitons in dense QCD matter, with a particular emphasis on the CFL phase exhibiting superfluidity and superconductivity, and their phenomenological implications in terms of the…

高能物理 - 唯象学 · 物理学 2014-02-04 Minoru Eto , Yuji Hirono , Muneto Nitta , Shigehiro Yasui