Quantum Simulation
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TLDR
The main theoretical and experimental aspects of quantum simulation have been discussed in this article, and some of the challenges and promises of this fast-growing field have also been highlighted in this review.Abstract:
Simulating quantum mechanics is known to be a difficult computational problem, especially when dealing with large systems However, this difficulty may be overcome by using some controllable quantum system to study another less controllable or accessible quantum system, ie, quantum simulation Quantum simulation promises to have applications in the study of many problems in, eg, condensed-matter physics, high-energy physics, atomic physics, quantum chemistry and cosmology Quantum simulation could be implemented using quantum computers, but also with simpler, analog devices that would require less control, and therefore, would be easier to construct A number of quantum systems such as neutral atoms, ions, polar molecules, electrons in semiconductors, superconducting circuits, nuclear spins and photons have been proposed as quantum simulators This review outlines the main theoretical and experimental aspects of quantum simulation and emphasizes some of the challenges and promises of this fast-growing fieldread more
Citations
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Classification of three-photon states in waveguide quantum electrodynamics
TL;DR: In this paper, the first classification of three-photon eigenstates in a finite periodic array of two-level atoms coupled to a waveguide was provided, and the hierarchical structure of the eigen states in the complex plane was explored using entanglement entropy as a distinguishing feature.
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Higher-Order Interactions in Quantum Optomechanics: Analytical Solution of Nonlinearity
TL;DR: In this paper, a method to solve the nonlinear Langevin equations arising from quadratic interactions in quantum mechanics is described, and first and second order truncation perturbation schemes are proposed.
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Noncommutative geometry of Zitterbewegung
TL;DR: In this paper, the authors model a Dirac fermion propagating in a curved spacetime and demonstrate that the inherent causal structure of the model encodes the possibility of Zitterbewegung, the ''trembling motion'' of the Fermion.
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Quantum Simulation of Three-Body Interactions in Weakly Driven Quantum Systems
Francesco Petiziol,Mahdi Sameti,Stefano Carretta,Sandro Wimberger,Sandro Wimberger,Florian Mintert +5 more
TL;DR: This work overcome crucial limitations of perturbative Floquet engineering and discuss the highly accurate realization of a purely three-body Hamiltonian in superconducting circuits and molecular nanomagnets.
Posted Content
The Quantum Illumination Story
TL;DR: In this article, an entanglement-based approach to quantum radar is described, and it is shown that despite loss and noise that destroy its initial entanglements, quantum illumination does offer a target-detection performance improvement over a classical radar of the same transmitted energy.
References
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Many-Body Physics with Ultracold Gases
TL;DR: In this article, a review of recent experimental and theoretical progress concerning many-body phenomena in dilute, ultracold gases is presented, focusing on effects beyond standard weakcoupling descriptions, such as the Mott-Hubbard transition in optical lattices, strongly interacting gases in one and two dimensions, or lowest-Landau-level physics in quasi-two-dimensional gases in fast rotation.
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The quantum internet
TL;DR: In this paper, the authors proposed a method for quantum interconnects, which convert quantum states from one physical system to those of another in a reversible manner, allowing the distribution of entanglement across the network and teleportation of quantum states between nodes.
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Quantum Phase Transition From a Superfluid to a Mott Insulator in a Gas of Ultracold Atoms
TL;DR: This work observes a quantum phase transition in a Bose–Einstein condensate with repulsive interactions, held in a three-dimensional optical lattice potential, and can induce reversible changes between the two ground states of the system.
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Cold Bosonic Atoms in Optical Lattices
Dieter Jaksch,Dieter Jaksch,Christoph Bruder,Christoph Bruder,J. I. Cirac,J. I. Cirac,Crispin W. Gardiner,Crispin W. Gardiner,Peter Zoller,Peter Zoller +9 more
TL;DR: In this paper, the Bose-Hubbard model was used to model the phase transition from the superfluid to the Mott insulator phase induced by varying the depth of the optical potential.
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Universal Quantum Simulators
TL;DR: Feynman's 1982 conjecture, that quantum computers can be programmed to simulate any local quantum system, is shown to be correct.