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
Unruh effect for interacting particles with ultracold atoms
TL;DR: In this article, the experimental realization of the Unruh effect for interacting ultracold fermions in optical lattices by a sudden quench resulting in vacuum acceleration with varying interactions strengths in the real temperature background is presented.
Journal ArticleDOI
Accurately computing the electronic properties of a quantum ring.
Charles Neill,Trevor McCourt,Xiao Mi,Zhang Jiang,Murphy Yuezhen Niu,Wojciech Mruczkiewicz,Igor L. Aleiner,Frank Arute,Kunal Arya,Juan Atalaya,Ryan Babbush,Joseph C. Bardin,Joseph C. Bardin,Rami Barends,Andreas Bengtsson,Alexandre Bourassa,Alexandre Bourassa,M. Broughton,Bob B. Buckley,David A. Buell,B. Burkett,Nicholas Bushnell,J. Campero,Zijun Chen,Benjamin Chiaro,Roberto Collins,William Courtney,Sean Demura,Alan R. Derk,Andrew Dunsworth,Daniel Eppens,Catherine Erickson,Edward Farhi,Austin G. Fowler,Brooks Foxen,Craig Gidney,Marissa Giustina,J. A. Gross,Matthew P. Harrigan,Sean D. Harrington,J. Hilton,Alan Ho,Sabrina Hong,Trent Huang,William J. Huggins,Sergei V. Isakov,M. Jacob-Mitos,Evan Jeffrey,Cody Jones,Dvir Kafri,Kostyantyn Kechedzhi,Julian Kelly,Seon Kim,Paul V. Klimov,Alexander N. Korotkov,Alexander N. Korotkov,Fedor Kostritsa,David Landhuis,Pavel Laptev,E. Lucero,Orion Martin,Jarrod R. McClean,Matt McEwen,Matt McEwen,Anthony Megrant,Kevin C. Miao,Masoud Mohseni,Josh Mutus,Ofer Naaman,Matthew Neeley,Michael Newman,Thomas E. O'Brien,A. Opremcak,Eric Ostby,Bálint Pató,Andre Petukhov,Chris Quintana,Nicholas Redd,Nicholas C. Rubin,Daniel Sank,Kevin J. Satzinger,Vladimir Shvarts,Doug Strain,Marco Szalay,Matthew D. Trevithick,Benjamin Villalonga,Ted White,Z. Yao,Ping Yeh,Adam Zalcman,Hartmut Neven,Sergio Boixo,Lev Ioffe,Pedram Roushan,Yu Chen,Vadim Smelyanskiy +95 more
TL;DR: In this paper, an experimental blueprint for an accurate condensed-matter simulator and demonstrate how to investigate fundamental electronic properties using 18 superconducting qubits is provided. But, the accuracy needed to outperform classical methods has not yet been achieved so far.
Journal ArticleDOI
Towards quantum simulation with circular Rydberg atoms
Thanh Long Nguyen,Jean-Michel Raimond,C. Sayrin,Rodrigo Cortiñas,Tigrane Cantat-Moltrecht,Fédéric Assemat,Igor Dotsenko,Sébastien Gleyzes,Serge Haroche,Guillaume Roux,Thierry Jolicoeur,Michel Brune +11 more
TL;DR: In this article, the authors proposed a new paradigm for quantum simulation of spin-1/2 arrays providing unprecedented flexibility and allowing one to explore domains beyond the reach of other platforms by transcribing the system of interest into another with the same dynamics but with interaction parameters under control and with experimental access to all relevant observables.
Journal ArticleDOI
t$|$ket$\rangle$ : A Retargetable Compiler for NISQ Devices
TL;DR: T$|$ket$\rangle as discussed by the authors is a quantum software development platform produced by Cambridge Quantum Computing Ltd. The compiler has been extensively benchmarked and outperforms most competitors in terms of circuit optimisation and qubit routing.
Journal ArticleDOI
Realization of uniform synthetic magnetic fields by periodically shaking an optical square lattice
Charles E. Creffield,Gregor Pieplow,Fernando Sols,Fernando Sols,Fernando Sols,Nathan Goldman +5 more
TL;DR: In this paper, a detailed comparison with a method based on moving lattices, which are added on top of a main static optical lattice, is provided, with direct implications for cold-atom experiments and photonics.
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.
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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.