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Quantum many-body

Conditional Independence in Quantum Many Body Systems

Conditional Independence in Quantum Many Body Systems

... I should also thank Robert K¨ onig and Stephanie Wehner for my early exposures in quantum information. They undoubtedly had a huge influence in the early stages of my research. It was from the discussions that I ...

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Efficient tomography of a quantum many-body system

Efficient tomography of a quantum many-body system

... small quantum systems in the laboratory ...precisely-controllable quantum systems that are well beyond the reach of QST are emerging in ...for quantum many-body systems ...of ...

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Spectroscopic signatures of quantum many body correlations in polariton microcavities

Spectroscopic signatures of quantum many body correlations in polariton microcavities

... the quantum-impurity scenario, we go beyond mean-field theory and construct impurity ↓- polariton wave functions that include two- and three- point quantum many-body ...i.e., ...

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Tensor networks and geometry for the modelling of disordered quantum many body systems

Tensor networks and geometry for the modelling of disordered quantum many body systems

... to quantum many-body problems. Quantum Monte Carlo (QMC) is perhaps the most well known method, this maps a quantum problem in d spatial dimensions to that of a d+ 1 dimensional ...

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Probing quantum many-body dynamics in nuclear systems

Probing quantum many-body dynamics in nuclear systems

... of many- body systems where up to about 500 nucleons (in the case of actinide collisions) may ...test quantum many- body theories is their almost complete isolation from ex- ternal ...

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Tensor networks and geometry for the modelling of disordered quantum many body systems

Tensor networks and geometry for the modelling of disordered quantum many body systems

... a quantum many-body system can be defined by a Hilbert space H and a Hamiltonian H describing the evolution of states in ...theory, quantum Monte Carlo and their variants and extensions have ...

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Emergent SU(2) dynamics and perfect quantum many-body scars

Emergent SU(2) dynamics and perfect quantum many-body scars

... coherent many-body revivals in a constrained Rydberg atom chain, we construct a weak quasi-local deformation of the Rydberg-blockaded Hamil- tonian, which makes the revivals virtually ...the ...

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The Interplay of Localization and Interactions in Quantum Many Body Systems

The Interplay of Localization and Interactions in Quantum Many Body Systems

... the many-body localization problem and numerically investigate the real- time dynamics of a many-body quasiperiodic ...a many-body localization transition upon the introduction ...

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Phase space formulation of the quantum many body problem

Phase space formulation of the quantum many body problem

... PI1ASE SPACE FOP BULATION OF TIE QUANTUM HANY BODY PROBLEM Thesis by Paul Hersh Levine In Partial Fulfillment of the Requirements For the Degree of Doctor of Philosophy Ca lifornia Institute of Techno[.] ...

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Surviving Quantum Chaos: Weak Thermalization, Prethermalization and Quantum Many Body Scar States

Surviving Quantum Chaos: Weak Thermalization, Prethermalization and Quantum Many Body Scar States

... of many-body systems at low (but finite) temperatures by approximating the low-energy spectrum as a gas of non-interacting ...studying quantum dynamics of states at low (but finite) energy ...precise ...

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Quantum mechanics and the big world : order, broken symmetry and coherence in quantum many-body systems

Quantum mechanics and the big world : order, broken symmetry and coherence in quantum many-body systems

... following can be straightforwardly generalized to higher dimensions as well. The harmonic potential between neighboring atoms is parametrized by κ ; it turns out that the results on spontaneous symmetry breaking that ...

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Simulation of Strongly Correlated Quantum Many Body Systems

Simulation of Strongly Correlated Quantum Many Body Systems

... The concept of an effective thermal potential, obtained by tracing out sites from the thermal Gibbs state, gives a clear physical picture of the workings of belief propagation. Adding a site to a spin chain can modify ...

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Development of Tensor Network Algorithms for Studying Classical and Quantum Many Body Systems

Development of Tensor Network Algorithms for Studying Classical and Quantum Many Body Systems

... Unfortunately our most interesting open physics problems are in the real world, where there is oftentimes more than one dimension and a finite temperature. Al- though it has exponential scaling when applied to dimensions ...

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Mathematical Results on Quantum Many body Physics

Mathematical Results on Quantum Many body Physics

... On many mornings, the sta at the math oce, previously Kathy Carreon, Stacey Croomes and Kristy Thompson, and more recently Elsa Echegaray, Meagan Heirwegh and Michelle Vine, have made my day a little brighter and ...

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Observation of many-body dynamics in long-range tunneling after a quantum quench

Observation of many-body dynamics in long-range tunneling after a quantum quench

... a quantum many-body system dominated by second- and third-order tunneling and identify resonant fourth- and fifth-order tunneling ...long-range many-body tunneling processes that we ...

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Many-body physics and the capacity of quantum channels with memory

Many-body physics and the capacity of quantum channels with memory

... true quantum capacity of a given correlated channel { E n } , in most cases such variational expressions are extremely difficult to ...(quantum) many-body systems, where in contrast true phase ...

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Holographic Entanglement in Group Field Theory

Holographic Entanglement in Group Field Theory

... in quantum geometry, much still remain to be ...in quantum geometry. Standard quantum mechanical correlations among links and nodes of the quantum many-body network state are ...

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Quantum Steampunk: Quantum Information, Thermodynamics, Their Intersection, and Applications Thereof Across Physics

Quantum Steampunk: Quantum Information, Thermodynamics, Their Intersection, and Applications Thereof Across Physics

... in quantum many-body systems ...represent quantum states as phase- space distributions represent statistical-mechanical states ...underlying quantum-computation speedups [15– ...in ...

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Tensor Network Representation of Many-Body Quantum States and Unitary Operators

Tensor Network Representation of Many-Body Quantum States and Unitary Operators

... a quantum-many body system is the pattern of entanglement individual constituents of the system have with each ...the quantum states have been represented as a superposition of conveniently ...

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Charge modulation as fingerprints of phase-string triggered interference

Charge modulation as fingerprints of phase-string triggered interference

... The Hartree-Fock-type theory is controlled at zero temper- ature by the diminishing of the collective quantum fluctuations of the order and it can therefore also be reliable when the interactions become strong. In ...

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