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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Journal ArticleDOI
Quantum Approach to Accelerate Finite Volume Method on Steady Computational Fluid Dynamics Problems
Zhaoyun Chen,Cheng Xue,Si-Ming Chen,Bing-Han Lu,Yu-Chun Wu,Junqing Ding,Sheng-Hong Huang,Guo-Ping Guo +7 more
Posted ContentDOI
Hamiltonian sparsification and gap-simulations.
Dorit Aharonov,Leo Zhou +1 more
TL;DR: In contrast to the classical setting, general degree-reduction is impossible in the quantum world, even under the relaxed notion of gap-simulation as discussed by the authors, and the impossibility proof relies on devising counterexample Hamiltonians and applying a strengthened variant of Hastings-Koma decay of correlations theorem.
Journal ArticleDOI
Use of discrete Wigner functions in the study of a hybrid dissipative system
TL;DR: Reboiro, Marta as mentioned in this paper, et al. as mentioned in this paper presented a paper on the Instituto de Fisica La Plata (IFLP) in the context of the Consejo Nacional de Investigaciones Cientificas y Tecnicas.
Book ChapterDOI
Quantum integrated photonic circuits
TL;DR: In this paper, the authors provide an overview of important basics of integrated quantum nanophotonics, represent the state of the art, and provide an outlook on possible future developments.
Journal ArticleDOI
Direct-dynamical Entanglement---Discord relations
TL;DR: In this paper, the authors considered Bell-diagonal two-qubit initial states under local dynamics generated by the Phase Damping, Bit Flip, Phase Flip, Bit Phase Flip and Depolarizing channels and reported some elegant direct-dynamical relations between geometric measures of entanglement and discord.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.
Journal ArticleDOI
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.