Article
Astronomy & Astrophysics
Jerome Martin, Vincent Vennin
Summary: This study introduces a new method for analytically determining the entanglement entropy between configurations of a quantum field at two distinct spatial locations, utilizing a bipartite, continuous Gaussian system. The method allows for deriving explicit formulas solely in terms of the Fourier-space power spectra of the field. This contrasts with previous studies relying on numerical considerations and leads to the first analytical derivation of results such as the decay of mutual information at large distances.
Article
Chemistry, Physical
Nadine C. Bradbury, Minh Nguyen, Justin R. Caram, Daniel Neuhauser
Summary: This study presents a highly efficient method for extracting the optical properties of very large molecules using the Bethe-Salpeter equation. The method calculates the effect of Coulombic interaction through stochastic time-dependent Hartree propagation, which allows for easy parallelization.
JOURNAL OF CHEMICAL PHYSICS
(2022)
Article
Physics, Multidisciplinary
Sara Murciano, Pasquale Calabrese, Robert M. Konik
Summary: The growth of Renyi entropies after injecting energy into a correlated system can reveal the dynamics of its entanglement properties. In this study, we develop a simulation scheme to determine this growth in Luttinger liquid systems with arbitrary interactions, even those introducing gaps into the liquid. We apply this scheme to a relevant experimental quench in the sine-Gordon field theory. While providing analytic expressions for the growth of the second and third Renyi entropies for short times, we combine our scheme with truncated spectrum methods to access longer times.
PHYSICAL REVIEW LETTERS
(2022)
Article
Multidisciplinary Sciences
Chao Duan, Takashi Nishikawa, Deniz Eroglu, Adilson E. Motter
Summary: This study investigates the response of large complex network systems to dynamical perturbations. By analyzing a extensive dataset of real directed networks, the study identifies network structural properties that contribute to nonnormality and reactivity and develops a theory that quantitatively predicts and explains these phenomena. The results have important implications for network design and management.
Article
Energy & Fuels
Biao Xie, Xinghua Zhang, Shaocheng Ge, Leilei Si, Dengkui Zhu, Jingjing Yu, Shengyong Hu
Summary: The hygroscopicity of coal powder is influenced by factors such as particle size, temperature, and relative humidity. Increasing particle size leads to a decrease in maximum moisture adsorption capacity and an increase in effective moisture adsorption time. Higher relative humidity significantly increases the maximum moisture adsorption capacity of coal powder. Different ranks of coal powders exhibit varying degrees of hygroscopicity, with low-rank coal showing the strongest water absorption ability. This study provides valuable insights for evaluating the moisture status, transportation efficiency, and combustion performance of coal powder.
Article
Multidisciplinary Sciences
Antti Ranni, Fredrik Brange, Elsa T. Mannila, Christian Flindt, Ville F. Maisi
Summary: Detecting the splitting of Cooper pairs in superconductors has been a challenge, but in this study, the authors successfully observed the real-time splitting of individual Cooper pairs in a superconducting device. By overcoming the challenge of accessing split Cooper pairs, the researchers were able to statistically analyze the correlation arising from two-electron processes with significant results. This breakthrough offers new possibilities for experiments involving the spin-entanglement of split Cooper pairs.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Hyeong Jun Lee, Choong H. Kim, Ara Go
Summary: In this study, a systematic investigation was conducted on the interplay between van Hove singularities and Hund's metallicity, demonstrating a significant enhancement of the latter by the former. The results suggest a synergy between van Hove singularities and Hund's coupling, providing valuable insights into the amplification of correlation-induced phenomena in crystalline solids.
Article
Materials Science, Multidisciplinary
Yi-Shiuan Huang, Yang-Hao Chan, Guang-Yu Guo
Summary: We performed ab initio many-body calculations to study the exciton shift current in small-diameter zigzag BN nanotubes and single BN sheet. It was found that there is a large in-gap peak in the shift current spectrum in all studied BN systems due to the A exciton. The peak value of the excitonic shift current is more than three times larger than that of the quasiparticle shift current, and is attributed to the significant enhancement of the optical dipole matrix element by the A exciton. Importantly, the direction of the shift current in the BN nanotubes is independent of the tube chirality.
Article
Physics, Mathematical
Benoit Collins, Razvan Gurau, Luca Lionni
Summary: We discuss the generalization of the Harish-Chandra-Itzykson-Zuber integral to tensors and analyze its asymptotic behavior for large N. Assumptions on the scaling of external tensors with N are made. Our study reveals non-trivial asymptotic regimes for a two-parameter class of scaling ansatze. This research is important for understanding the entanglement properties of multipartite quantum systems and its potential applications to randomized local measurements.
COMMUNICATIONS IN MATHEMATICAL PHYSICS
(2023)
Article
Chemistry, Physical
Qiang Xu, Mauro Del Ben, Mahmut Sait Okyay, Min Choi, Khaled Z. Ibrahim, Bryan M. Wong
Summary: This study presents a new VG-rtTDDFTB method implemented in the DFTB+ software package for real-time simulations of electronic excitations in large condensed matter systems. The method allows for efficient simulations of systems containing thousands of atoms and has been benchmarked on various materials to demonstrate its accuracy and computational parallelizability.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2023)
Article
Optics
Shenchao Jin, Han Bao, Junlei Duan, Xingda Lu, Mingfeng Wang, Kai-Feng Zhao, Heng Shen, Yanhong Xiao
Summary: The spin-squeezed state is a multi-body entangled state of great interest for precision measurements. The adiabatic pulse control of the pump field in state preparation is essential for noise suppression, which is necessary for achieving spin squeezing and has significance for quantum metrology applications.
PHOTONICS RESEARCH
(2021)
Article
Physics, Applied
Tingwei Zhou
Summary: This article systematically studied the wave-particle entanglement of a particle system composed of N particles. The results show that the particle system exhibits wave-particle entanglement after interaction. Additionally, a construction method for the wave-particle entanglement state is discovered for the particle system. The experimental work with photons confirms the existence of wave-particle entanglement and provides new insights into its nature.
MODERN PHYSICS LETTERS B
(2023)
Article
Physics, Particles & Fields
Mahdis Ghodrati
Summary: The entanglement of purification and the critical distance between mixed systems are used to probe the phase structures of QCD and confining backgrounds. The study shows that different confining geometries exhibit rich phase structures and can be distinguished using these measures.
EUROPEAN PHYSICAL JOURNAL C
(2022)
Article
Chemistry, Multidisciplinary
A. Kondakova, T. F. Kamalov
Summary: This study focuses on the propagation features of optical solitons in a nematic liquid crystal and presents a mathematical model for simulating entangled photon states. It also proposes improvements for entangled photon detectors and discusses the potential use of the idea in quantum computers.
Article
Mathematics, Applied
Matthew M. Lin, Moody T. Chu
Summary: The paper presents a study on the approximation problem of a multipartite system with entangled symmetric rank-1 matrices via the Kronecker tensor product. The involvement of the Kronecker product makes the problem more challenging compared to conventional low-rank tensor approximations, but the paper proposes effective numerical iterative methods to tackle the problem.
JOURNAL OF SCIENTIFIC COMPUTING
(2022)
Article
Physics, Multidisciplinary
Thorsten B. Wahl, Arijeet Pal, Steven H. Simon
Article
Physics, Multidisciplinary
D. Pellegrino, G. Kells, N. Moran, J. K. Slingerland
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2020)
Article
Physics, Multidisciplinary
Glenn Wagner, Dung X. Nguyen, Steven H. Simon
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
Felix Flicker, Steven H. Simon, S. A. Parameswaran
Article
Physics, Multidisciplinary
Steven H. Simon, Bernd Rosenow
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Multidisciplinary
Yves H. Kwan, Yichen Hu, Steven H. Simon, S. A. Parameswaran
Summary: The study reveals the topological features of neutral particle-hole pair excitations and their impact on the bound states in correlated QAH insulators. This results in the formation of topological exciton bands with robust features. The research also applies these ideas to broken-symmetry spontaneous QAH insulators in magic-angle twisted bilayer graphene with substrate alignment.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
K. Kavanagh, S. Dooley, J. K. Slingerland, G. Kells
Summary: In this study, we investigate the impact of particle pair creation and annihilation on the non-equilibrium steady state and Liouvillian gap of the quantum transverse XY model. By using operator quantization and a Majorana canonical basis, we demonstrate that the character of the gap is dependent on the anisotropy parameter and varies with the phase of the XY model, corresponding to a quantum phase transition.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
A. Conlon, D. Pellegrino, J. K. Slingerland
Summary: Kitaev's toric code is constructed using a finite gauge group, which can be extended with a finite-dimensional semisimple Hopf algebra. By introducing a non-trivial quasitriangular structure, the construction of the gauge theory is modified, resulting in a non-commutative algebra and simple Hamiltonian models that generalize the toric code. In the case of Z(N) gauge theory, the non-trivial R-matrix leads to flux attachment.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2023)
Article
Physics, Multidisciplinary
Jorgen Fulsebakke, Mikael Fremling, Niall Moran, J. K. Slingerland
Summary: Calculating pair correlations and density profiles of quasiholes is a routine procedure in studying fractional quantum Hall states, but there is no standardized method for presenting the results in a reproducible form. In this study, a polynomial expansion is developed to allow for quantitative comparison between different wavefunctions and reliable scaling to the thermodynamic limit. This expansion is applied to extract coefficients and profiles for various quantum Hall states, and it is found that the expansion coefficients can be well fitted using a cosine oscillation with exponentially decaying amplitude. The frequency and decay length of the oscillation are related to the filling fraction in an intuitive way.
Article
Materials Science, Multidisciplinary
Nico Kirchner, Darragh Millar, Babatunde M. Ayeni, Adam Smith, Joost K. Slingerland, Frank Pollmann
Summary: Two-dimensional systems like quantum spin liquids or fractional quantum Hall systems exhibit anyonic excitations with more general statistics than bosons or fermions. Simulating these anyonic systems is challenging, even for non-interacting anyons. In this study, we propose an algorithm derived from low energy topological quantum field theory to simulate anyonic tight-binding Hamiltonians on two-dimensional lattices. Using this algorithm, we investigate the energy level spacing statistics for different types of anyons and observe level repulsion for free semions, Fibonacci anyons, and Ising anyons. We also simulate nonequilibrium quench dynamics and find that the density distribution becomes homogeneous over time, indicating thermalization.
Article
Materials Science, Multidisciplinary
Steven H. Simon, Mark S. Rudner
Article
Materials Science, Multidisciplinary
Glenn Wagner, Dung X. Nguyen, Steven H. Simon
Article
Materials Science, Multidisciplinary
Dung X. Nguyen, Glenn Wagner, Steven H. Simon
Article
Materials Science, Multidisciplinary
Steven H. Simon, Matteo Ippoliti, Michael P. Zaletel, Edward H. Rezayi
Article
Materials Science, Multidisciplinary
J-R Soh, F. de Juan, M. G. Vergniory, N. B. M. Schroeter, M. C. Rahn, D. Y. Yan, J. Jiang, M. Bristow, P. A. Reiss, J. N. Blandy, Y. F. Guo, Y. G. Shi, T. K. Kim, A. McCollam, S. H. Simon, Y. Chen, A. Coldea, A. T. Boothroyd