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A NEW METHOD OF EXPANSION IN QUANTUM MANY-BODY PROBLEM .3. DENSITY FIELD
Published 1967Journal article -
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THE COUPLED-CLUSTER APPROACH TO QUANTUM MANY-BODY PROBLEM IN A THREE-HILBERT-SPACE REINTERPRETATION
Published 2014-04-01Get full text
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A NEW METHOD OF EXPANSION IN QUANTUM MANY-BODY PROBLEM .2. THERMODYNAMIC GREEN FUNCTIONS
Published 1967Journal article -
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On phase segregation in nonlocal two-particle Hartree systems
Published 2009-06-01Subjects: Get full text
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A Numerically Exact Approach to Quantum Impurity Problems in Realistic Lattice Geometries
Published 2019-06-01“…The resulting dimensional and entanglement reduction allows one to study the quantum many-body problem on arbitrary d-dimensional lattices using the density matrix renormalization group (DMRG) method. …”
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Interaction between Different Kinds of Quantum Phase Transitions
Published 2021-04-01“…The pairing versus monopole effects here observed afford for some interesting insights into the intricacies of the quantum many body problem, in particular with regards to so-called quantum phase transitions (strictly, level crossings).…”
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Modeling noncovalent interatomic interactions on a photonic quantum computer
Published 2023-10-01“…However, accurately capturing these interactions is a complex quantum many-body problem, with no efficient solution available on classical computers. …”
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Stochastic representation of many-body quantum states
Published 2023-06-01“…Abstract The quantum many-body problem is ultimately a curse of dimensionality: the state of a system with many particles is determined by a function with many dimensions, which rapidly becomes difficult to efficiently store, evaluate and manipulate numerically. …”
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Quantum theory of Kerr nonlinearity with Rydberg slow light polaritons
Published 2016-01-01“…In this regime, the quantum many-body problem can be solved analytically for arbitrary shape of the atomic cloud. …”
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Learning Feynman Diagrams with Tensor Trains
Published 2022-11-01“…We use tensor network techniques to obtain high-order perturbative diagrammatic expansions for the quantum many-body problem at very high precision. The approach is based on a tensor train parsimonious representation of the sum of all Feynman diagrams, obtained in a controlled and accurate way with the tensor cross interpolation algorithm. …”
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Symmetry-protected Bose-Einstein condensation of interacting hardcore bosons
Published 2023-07-01“…We illustrate this mechanism by constructing the solution of the full quantum many-body problem of hardcore bosons on a wheel geometry, which are known to form Bose-Einstein condensates. …”
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Simulating a ring-like Hubbard system with a quantum computer
Published 2022-03-01“…We develop a workflow to use current quantum computing hardware for solving quantum many-body problems, using the example of the fermionic Hubbard model. …”
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Deep learning representations for quantum many-body systems on heterogeneous hardware
Published 2023-01-01“…The quantum many-body problems are important for condensed matter physics, however solving the problems are challenging because the Hilbert space grows exponentially with the size of the problem. …”
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Interpreting machine learning of topological quantum phase transitions
Published 2020-06-01“…The interpretability in these cases suggests hope for theoretical progress based on future uses of ANN-based machine learning on quantum many-body problems.…”
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Quantum machine learning for electronic structure calculations
Published 2018-10-01“…Here, the authors develop a quantum machine learning algorithm, which demonstrates significant improvements in solving quantum many-body problems.…”
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Multipurpose platform for analog quantum simulation
Published 2024-02-01“…Atom-based quantum simulators have had many successes in tackling challenging quantum many-body problems, owing to the precise and dynamical control that they provide over the systems' parameters. …”
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