Many Body systems
Nonperturbative Renormalisation Group: Applications to the few and many-body systems
... on both boson or fermion degrees of freedom. As men- tioned above the flow equation is a functional differential equation, and since there are no general methods to solve such equations numerically, we must resort to ...
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Tensor networks and geometry for the modelling of disordered quantum many body systems
... are many ways that tensor networks can aid the study of disordered ...is many-body localisation (MBL), the generalisation of Anderson localisation to interacting many-body ...
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Simulation of Strongly Correlated Quantum Many Body Systems
... quantum many-body systems on both classical and quantum ...in many areas such as image recognition, artificial intelligence and statistical ...quantum many-body systems, ...
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Tensor networks and geometry for the modelling of disordered quantum many body systems
... are many ways that tensor networks can aid the study of disordered ...is many-body localisation (MBL), the generalisation of Anderson localisation to interacting many-body ...
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Conditional Independence in Quantum Many Body Systems
... Due to the scope of the thesis, we explain the necessary background materials to read each of the chapters. Chapter 2 concerns exactly solvable models that can be described by the stabilizer group formalism, which is ...
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Time scale for adiabaticity breakdown in driven many-body systems and orthogonality catastrophe
... larger systems it stumbles upon the issues of computational complexity, ...physical systems, that is, many-body systems where a small move in the parameter space induces the ...
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Crossover between strong and weak measurement in interacting many body systems
... single-degree-of-freedom systems [28–31], where the WV-to-SV crossover is quite straightforward and is a smooth function of the interaction ...A many-body theory of variable strength quantum ...
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Metastable decoherence free subspaces and electromagnetically induced transparency in interacting many body systems
... To study this in detail, we note that in the ab- sence of the probe field, the ground level | 1 i is discon- nected from the dynamics, as shown in Fig. 1a. For a single atom also the level | 4 i is disconnected. For ...
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Development of Tensor Network Algorithms for Studying Classical and Quantum Many Body Systems
... preparing many states of interest, either by creating starting states to aid DMRG calculations or preparing a particular ansatz as an ...for systems with 2 spatial dimensions, periodic boundary conditions, ...
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Quantum mechanics and the big world : order, broken symmetry and coherence in quantum many-body systems
... Many proposals exist for the way that quantum collapse could work in practice [8, 14–16, 26, 27, 40, 46–48, 52–60]. Some of these proposals are really alternative in- terpretations of the mathematics of quantum ...
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The Interplay of Localization and Interactions in Quantum Many Body Systems
... This chapter is devoted to numerically addressing precisely that issue. More concretely, suppose we begin with a half-filled, one-dimensional system of fermions or hardcore bosons in a particular randomly chosen ...
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Level and width statistics of the open many-body systems
... two body random ensemble with correlated couplings to the continuum, the correlation between the target and the compound states leads to the global energy dependence of the ...
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Ground state and dynamical properties of many-body systems by non conventional Quantum Monte Carlo algorithms
... in many fields of Physics. Classical systems in thermal equilibrium can be efficiently tackled by Classical Monte Carlo tech- niques, which are exact methods to sample from the Boltzmann distribution at ...
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Recent progress in many-body localization
... generic many-body systems, ...(Most systems in nature indeed possess both of these ...a many-body system can be assumed to be isolated from any thermal bath, therefore it evolves ...
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Role of interactions in a dissipative many body localized system
... quantum many-body systems in their many-body localized (MBL) ...such systems reach a unique ergodic state, their dynamics is characterized by slow relaxation manifested in ...
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Many-body physics and the capacity of quantum channels with memory
... in many- body systems arises only in the thermodynamic limit, and so our results unfortunately do not really explain why the non-analyticities that have been observed in papers such as [5]–[7] occur ...
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Adiabatic Preparation of Many-Body States in Optical Lattices
... correlated many-body states such as antiferromagnetically (AF) ordered states is indeed feasible under current experimental ...of systems of ultracold atoms, namely their nearly perfect isolation ...
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Criterion for many-body localization-delocalization phase transition
... in systems of cold atoms ...certain many-body systems exhibit an intermediate nonergodic phase, here we focus on the case of a direct transition between the MBL and ergodic phases, which is ...
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Dissipative many body physics of cold Rydberg atoms
... quantum many-body systems in the framework of quantum computation and quantum ...Rydberg systems exhibit interesting and non-trivial many-body phenomena such as kinetic ...
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By-passing fluctuation theorems
... Turning to the second point, one may wonder how this notion of thermodynamically free channels can be recon- ciled with the fact that JE is violated. However, note that in the standard JE setting, the work variable is ...
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