Chiral superconductivity in the doped triangular-lattice Fermi-Hubbard model in two dimensions by Vinicius Zampronio, Tommaso Macrì

“…Here we simulate two-dimensional and quasi-one-dimensional triangular lattices using state-of-the-art Auxiliary-Field Quantum Monte Carlo. Upon doping a non-magnetic chiral spin state, we observe evidence of chiral superconductivity supported by long-range order in Cooper-pair correlation and a finite value of the chiral order parameter. …”
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Photoemission "experiments" on holographic lattices by Filip Herček, Vladan Gecin, Mihailo Čubrović

“…Comparing the holographic Green functions in imaginary frequency with the Green functions of the Hubbard model obtained from quantum Monte Carlo, we find that the holographic model provides a very good fit to the Hubbard Green function. …”
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Topological to magnetically ordered quantum phase transition in antiferromagnetic spin ladders with long-range interactions by Luhang Yang, Phillip Weinberg, Adrian E. Feiguin

“…Using large scale quantum Monte Carlo (QMC) and density matrix renormalization group (DMRG) simulations, we show that this model undergoes a transition from a rung-dimer phase characterized by a non-local string order parameter, to a symmetry broken N\'eel phase. …”
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Strong-coupling Bose polarons in one dimension: Condensate deformation and modified Bogoliubov phonons by J. Jager, R. Barnett, M. Will, M. Fleischhauer

“…A comparison of polaron energies and masses to diffusion quantum Monte Carlo simulations shows very good agreement already on the level of analytical mean-field solutions and is further improved when taking into account quantum fluctuations.…”
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Combined spontaneous symmetry-breaking and symmetry-protected topological order from cluster charge interactions by Chen Peng, Rong-Qiang He, Yuan-Yao He, Zhong-Yi Lu

“…Here we report a concrete example by employing a large-scale unbiased quantum Monte Carlo study of the Kane-Mele model with cluster charge interactions. …”
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Strongly-interacting bosons at 2D-1D dimensional crossover by Hepeng Yao, Lorenzo Pizzino, Thierry Giamarchi

“…Using a continuous quantum Monte Carlo method, we investigate this dimensional crossover by computing longitudinal and transverse superfluid fraction as well as the superfluid correlation as a function of temperature, interactions and potential. …”
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Emergent symmetries and coexisting orders in Dirac fermion systems by Emilio Torres, Lukas Weber, Lukas Janssen, Stefan Wessel, Michael M. Scherer

“…We demonstrate, using a combination of nonperturbative field-theoretical analysis and an adapted quantum Monte Carlo approach, that such systems exhibit a strong-coupling quantum multicritical fixed point with an emerging enhanced symmetry. …”
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Non-Fermi Liquid at (2+1)D Ferromagnetic Quantum Critical Point by Xiao Yan Xu, Kai Sun, Yoni Schattner, Erez Berg, Zi Yang Meng

“…Using extensive sign-problem-free quantum Monte Carlo simulations, we show that the model realizes a continuous itinerant quantum phase transition. …”
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Normal State Properties of Quantum Critical Metals at Finite Temperature by Avraham Klein, Andrey V. Chubukov, Yoni Schattner, Erez Berg

“…Corrections to Eliashberg theory break these power laws but only at very small frequencies. Quantum Monte Carlo (QMC) simulations have shown that, already at much larger frequencies, there are strong systematic deviations from these predictions, casting doubt on the validity of the theoretical analysis. …”
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A GPU-Based Quantum Annealing Simulator for Fully-Connected Ising Models Utilizing Spatial and Temporal Parallelism by Hasitha Muthumala Waidyasooriya, Masanori Hariyama

“…However, parallel implementation is difficult due to the serial nature of the quantum Monte Carlo algorithm used in SQA. In this paper, we propose a method to implement SQA in parallel on a GPU while preserving the data dependency. …”
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Comparing many-body approaches against the helium atom exact solution by Jing Li, N. D. Drummond, Peter Schuck, Valerio Olevano

“…We present new results beyond the random-phase approximation (RPA) from a renormalized RPA (r-RPA) in the framework of the self-consistent RPA (SCRPA) originally developed in nuclear physics, and compare them with various other approaches like configuration interaction (CI), quantum Monte Carlo (QMC), time-dependent density-functional theory (TDDFT), and the Bethe-Salpeter equation on top of the GW approximation. …”
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Magnon Landau levels in the strained antiferromagnetic honeycomb nanoribbons by Junsong Sun, Huaiming Guo, Shiping Feng

“…At large enough strength, the system is decoupled into isolated zigzag chains near the upper boundary and demonstrates one-dimensional magnetic property there. While the quantum Monte Carlo simulations also predict such a transition, this exact method gives a critical point deeper in the bulk. …”
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Many-body effects in low dimensional electron liquids by R. Asgari

“…As a final application, the Luttinger theory is discussed and we compare our recent calculations with those obtained from quantum Monte Carlo simulation for one dimensional electron liquid.…”
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Exploring finite-size effects in strongly correlated systems by Buraczynski M., Dawkins W., Ismail N., Gezerlis A.

“…Ab initio, non-perturbative Quantum Monte Carlo (QMC) methods can be employed to accurately compute ground-state energies and finite-temperature properties. …”
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Quantum fluctuations beyond the Gutzwiller approximation in the Bose-Hubbard model by Fabio Caleffi, Massimo Capone, Chiara Menotti, Iacopo Carusotto, Alessio Recati

“…As specific examples of application, we study the two-point correlation functions, the superfluid stiffness, and the density fluctuations, for which quantitative agreement with available quantum Monte Carlo data is found. In particular, the two different universality classes of the superfluid-insulator quantum phase transition at integer and noninteger filling are recovered.…”
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Ab initio calculation of the electromagnetic and neutral-weak response functions of 4He and 12C by Lovato A., Benhar O., Carlson J., Gandolfi S., Pieper Steven C., Rocco N., Schiavilla R.

“…We summarize our progresses towards the construction of a consistent framework, based on quantum Monte Carlo methods and on the spectral function approach, that can be exploited to accurately describe neutrino interactions with atomic nuclei over the broad kinematical region covered by neutrino experiments.…”
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Towards efficient and accurate ab initio solutions to periodic systems via transcorrelation and coupled cluster theory by Ke Liao, Thomas Schraivogel, Hongjun Luo, Daniel Kats, Ali Alavi

“…Using the three-dimensional uniform electron gas as a model for real periodic solids and highly accurate ground-state energies from the state-of-the-art quantum Monte Carlo methods as benchmark, we show that, with the correct physical insights incorporated, our TC-CC methods gain drastic improvements in accuracy compared with canonical CC methods, and the errors of our methods remain ±0.001 Hartree per electron (Ha/electron) across a wide range of densities. …”
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Machine learning universal bosonic functionals by Jonathan Schmidt, Matteo Fadel, Carlos L. Benavides-Riveros

“…For the Bose-Hubbard model, we present a comparison between our approach and the quantum Monte Carlo method.…”
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Quantum simulation of the benzene-water complex by Gregory, J, Clary, D

“…A theoretical investigation is presented of the weakly bound complex formed between benzene and water. Diffusion quantum Monte Carlo methods are used to describe the nuclear motion plus two potentials which give quite good agreement with DZP/MP2 ab initio calculations, and simulations were performed for four isotopomers of C6H6 ⋯ H2O. …”

Path integrals, diffusion on SU(2) and the fully frustrated antiferromagnetic spin cluster by Hogan, P, Chalker, J

“…The calculation provides an analytically tractable illustration of the auxiliary field approach, as used in quantum Monte Carlo calculations, and may potentially be extended to treat more complex frustrated spin systems.…”