quantum many-body system
Efficient tomography of a quantum many-body system
... Acknowledgments. Work in Innsbruck was supported by the Austrian Science Fund (FWF) under the grant number P25354-N20, by the European Commission via the integrated project SIQS, by the Institut für Quanteninformation ...
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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 system in a more explicit and efficient way than the ...
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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 ...
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Boundary time crystals
... Conclusions - In this work we introduced boundary time crystals. In the same spirit as in the original defini- tion given in [9], in the BTC phase the time-dependent order parameter appears only in a portion of the sam- ...
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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 ...
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Fast nonadiabatic dynamics of many body quantum systems
... We can now implement the Bohmian dynamics method with a molecular dynamics simulation inclusive of the potentials discussed above. Within the microcanonical ensemble, we could simply integrate the equation of motion for ...
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Experimental signatures of an absorbing state phase transition in an open driven many body quantum system
... Here we experimentally observe signatures of an ab- sorbing state phase transition in a driven open quan- tum system formed by a gas of cold atoms. We laser- excite high-lying Rydberg states under so-called ...
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The Interplay of Localization and Interactions in Quantum Many Body Systems
... the system, vanishes due to the presence of arbitrarily large rare regions of superfluid ...the system, specifically in the largest of the rare-region superfluid ...
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Simulation of Strongly Correlated Quantum Many Body Systems
... the system, making it more suitable for numerical ...critical quantum Ising chain and the transverse field quantum Ising spin ...last system, our findings are, within estimated error bars, in ...
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Spectroscopic signatures of quantum many body correlations in polariton microcavities
... probe quantum correlations in a many-body polariton system through quantum impurity ...a quantum-mechanical medium, thus forming a new quasiparticle or polaronic state [7, 8] ...
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Surviving Quantum Chaos: Weak Thermalization, Prethermalization and Quantum Many Body Scar States
... the system at low energy and now think about dilute gas of these as well as single-spin-flip quasiparticles, adding more accuracy to the description but also much more ...
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Tensor networks and geometry for the modelling of disordered quantum many body systems
... Two site DMRG is in many ways a direct translation of the original DMRG algorithm [15] discussed in section 2.1, to MPS in that one considers two sites between the left and right blocks at each step of the ...
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Quantum mechanics and the big world : order, broken symmetry and coherence in quantum many-body systems
... which quantum mechanics carries along the means of its own ...of quantum particles grows toward an infinite size, it becomes possible for the system as a whole to spontaneously organize into a state ...
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Development of Tensor Network Algorithms for Studying Classical and Quantum Many Body Systems
... the quantum state is a multilinear function of the local ...Infinite system DMRG (iDMRG) [5, 6, 47] proceeds by performing regular DMRG on a successively growing lattice, inserting and optimizing over new ...
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Role of interactions in a dissipative many body localized system
... Recent experimental and theoretical efforts have focused on the effect of dissipation on quantum many-body systems in their many-body localized (MBL) phase. While in the presence of ...
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Probing quantum many-body dynamics in nuclear systems
... In a second step, the time response of the wave- functions is computed over a finite time of typically 10 − 20 zs. The case of unbound states should be considered with care as emitted particles bounce back from the edge ...
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Quantum trajectories and open many-body quantum systems
... strongly-interacting many-body ...of quantum simulation [6, ...from quantum optics in this new many-body ...interesting many-body states, which often require very ...
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Mathematical Results on Quantum Many body Physics
... At low particle density, this leads to tightly bound fermion pairs. The pairs will approximately look like bosons to one another and, since we are at zero temperature, they will form a Bose-Einstein condensate (BEC). It ...
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Numerical Methods for Many-Body Quantum Dynamics
... the system and ancillae together are in a pure ...where many operators with reasonable matrix product representations are not posi- tive and hence are invalid as density matrices, every representable vector ...
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Conditional Independence in Quantum Many Body Systems
... three-dimensional system described by a stabilizer group formalism with a bounded number of encoded qubits, the energy barrier is always bounded by a ...have many counterintuitive ...self-correcting ...
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