Efficient quantum simulation for thermodynamics of infinite-size many-body systems in arbitrary dimensions

\Negativity is regarded as an important measure of entanglement in quantum information theory. In contrast to other measures of entanglement, it is easily computable for bipartite states in arbitrary dimensions. In this paper, based on the negativity and realignment, we provide a set of entanglement-sharing constraints for multipartite states, where the entanglement is not necessarily limited to bipartite and pure states, thus aiding in the quantification of constraints for entanglement-sharing. These may find applications in studying many-body systems.

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On the Galilean Duffin–Kemmer–Petiau equation in arbitrary dimensions

International Journal of Modern Physics A ◽

10.1142/s0217751x20500864 ◽

2020 ◽

Vol 35 (18) ◽

pp. 2050086

Author(s):

M. de Montigny ◽

E. S. Santos

Keyword(s):

Light Cone ◽

Arbitrary Number ◽

Tensor Structure ◽

Many Body ◽

Covariant Formalism ◽

Arbitrary Dimensions ◽

Many Body Systems

We obtain the representations of the Galilean covariant Duffin–Kemmer–Petiau equation in an arbitrary number of dimensions. Their purpose is to facilitate the study of nonrelativistic many-body systems with spinless and spin-one fields. A Galilean covariant formalism exploits the tensor structure of relativistic Lorentz-invariant theories by adding one extra spacelike coordinate and working with light-cone coordinates.

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Manipulating Quantum Many-Body Systems in the Presence of Controllable Dissipation

Proceedings ◽

10.3390/proceedings2019012008 ◽

2019 ◽

Vol 12 (1) ◽

pp. 8

Author(s):

Davide Rossini

Keyword(s):

Gauge Field ◽

Annealing Time ◽

Quantum Simulation ◽

Quantum Annealing ◽

Many Body ◽

Persistent Currents ◽

Dissipative Processes ◽

Nonadiabatic Effects ◽

Many Body Systems ◽

Many Body Physics

We discuss two quantum simulation schemes in which the coupling to an external bath may give rise to novel and interesting many-body physics. Namely, we first address the effect of local Markovian baths on the quantum annealing dynamics of an Ising-like chain: deviations from adiabaticity may display a nonmonotonic trend as a function of the annealing time, as a result of the competition between nonadiabatic effects and dissipative processes. Secondly, we provide a framework to induce persistent currents through the coupling with a structured reservoir which generates nonreciprocity, without the need of any applied gauge field.

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Experimental Quantum Simulation of Entanglement in Many-Body Systems

Physical Review Letters ◽

10.1103/physrevlett.107.010501 ◽

2011 ◽

Vol 107 (1) ◽

Cited By ~ 22

Author(s):

Jingfu Zhang ◽

Tzu-Chieh Wei ◽

Raymond Laflamme

Keyword(s):

Quantum Simulation ◽

Many Body ◽

Many Body Systems

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Superconducting quantum many-body circuits for quantum simulation and computing

Applied Physics Letters ◽

10.1063/5.0008202 ◽

2020 ◽

Vol 116 (23) ◽

pp. 230501

Author(s):

Samuel A. Wilkinson ◽

Michael J. Hartmann

Keyword(s):

Quantum Simulation ◽

Many Body

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REGULAR STRUCTURE OF LOW-LYING STATES FOR ATOMIC NUCLEI UNDER RANDOM INTERACTIONS

International Journal of Modern Physics E ◽

10.1142/s021830130801194x ◽

2008 ◽

Vol 17 (supp01) ◽

pp. 304-317

Author(s):

Y. M. ZHAO

Keyword(s):

Ground State ◽

Collective Motion ◽

Regular Structure ◽

Positive Parity ◽

Many Body ◽

Random Interactions ◽

Atomic Nuclei ◽

Many Body Systems

In this paper we review regularities of low-lying states for many-body systems, in particular, atomic nuclei, under random interactions. We shall discuss the famous problem of spin zero ground state dominance, positive parity dominance, collective motion, odd-even staggering, average energies, etc., in the presence of random interactions.

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