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Real-time dynamics of lattice gauge theories with a few-qubit quantum computer
TLDR
This work reports the experimental demonstration of a digital quantum simulation of a lattice gauge theory, by realizing (1 + 1)-dimensional quantum electrodynamics (the Schwinger model) on a few-qubit trapped-ion quantum computer and explores the Schwinger mechanism of particle–antiparticle generation by monitoring the mass production and the vacuum persistence amplitude.
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Self-verifying variational quantum simulation of lattice models
TLDR
Experiments are presented that demonstrate self-verifying, hybrid, variational quantum simulation of lattice models in condensed matter and high-energy physics, enabling the study of a wide variety of previously intractable target models.
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Entanglement generated by dissipation and steady state entanglement of two macroscopic objects.
TLDR
An experiment where dissipation continuously generates entanglement between two macroscopic objects is reported on, achieved by engineering the dissipation using laser and magnetic fields and leading to robust event-readyEntanglement maintained for 0.04 s at room temperature.
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Deterministic quantum state transfer between remote qubits in cavities
Performing a faithful transfer of an unknown quantum state is a key challenge for enabling quantum networks. The realization of networks with a small number of quantum links is now actively pursued,…
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Simulating lattice gauge theories within quantum technologies
Lattice gauge theories, which originated from particle physics in the context of Quantum Chromodynamics (QCD), provide an important intellectual stimulus to further develop quantum information…
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Deterministic quantum teleportation between distant atomic objects
An experiment now demonstrates the deterministic continuous-variable teleportation between two atomic ensembles at room temperature. This protocol makes it possible to teleport time-evolving quantum…
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U(1) Wilson lattice gauge theories in digital quantum simulators
Lattice gauge theories describe fundamental phenomena in nature, but calculating their real-time dynamics on classical computers is notoriously difficult. In a recent publication (Martinez et al 2016…
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SU(2) hadrons on a quantum computer via a variational approach
TLDR
A hybrid resource-efficient approach is developed by combining classical and quantum computing, that not only allows the study of an SU(2) gauge theory with dynamical matter fields on present-day quantum hardware, but further lays out the premises for future quantum simulations that will address currently unanswered questions in particle and nuclear physics.
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Harnessing vacuum forces for quantum sensing of graphene motion.
TLDR
This work presents a novel detection scheme based upon the strong, dispersive vacuum interactions between a graphene sheet and a quantum emitter that enables strong quantum squeezing of the graphene position on time scales that are short compared to the mechanical period.
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A resource efficient approach for quantum and classical simulations of gauge theories in particle physics
TLDR
A resource-efficient protocol to simulate LGTs with continuous gauge groups in the Hamiltonian formulation, which permits an efficient description of the magnetically-dominated regime in LGTs.
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