Implementing a synthetic magnetic vector potential in a 2D superconducting qubit array

• URL: http://arxiv.org/abs/2405.00873v5
• Date: Mon, 9 Sep 2024 17:47:10 GMT
• Title: Implementing a synthetic magnetic vector potential in a 2D superconducting qubit array
• Authors: Ilan T. Rosen, Sarah Muschinske, Cora N. Barrett, Arkya Chatterjee, Max Hays, Michael DeMarco, Amir Karamlou, David Rower, Rabindra Das, David K. Kim, Bethany M. Niedzielski, Meghan Schuldt, Kyle Serniak, Mollie E. Schwartz, Jonilyn L. Yoder, Jeffrey A. Grover, William D. Oliver,
• Abstract summary: Many interesting condensed-matter phenomena emerge only in the presence of electromagnetic fields. We emulate the dynamics of charged particles in an electromagnetic field using a superconducting quantum simulator. We demonstrate that the Hall effect--the transverse deflection of a charged particle propagating in an electromagnetic field--exists in the presence of the synthetic electromagnetic field.
• Score: 0.19165511108619068
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Superconducting quantum processors are a compelling platform for analog quantum simulation due to the precision control, fast operation, and site-resolved readout inherent to the hardware. Arrays of coupled superconducting qubits natively emulate the dynamics of interacting particles according to the Bose-Hubbard model. However, many interesting condensed-matter phenomena emerge only in the presence of electromagnetic fields. Here, we emulate the dynamics of charged particles in an electromagnetic field using a superconducting quantum simulator. We realize a broadly adjustable synthetic magnetic vector potential by applying continuous modulation tones to all qubits. We verify that the synthetic vector potential obeys requisite properties of electromagnetism: a spatially-varying vector potential breaks time-reversal symmetry and generates a gauge-invariant synthetic magnetic field, and a temporally-varying vector potential produces a synthetic electric field. We demonstrate that the Hall effect--the transverse deflection of a charged particle propagating in an electromagnetic field--exists in the presence of the synthetic electromagnetic field.

Related papers

• Visualizing Dynamics of Charges and Strings in (2+1)D Lattice Gauge Theories [103.95523007319937]
  We study the dynamics of local excitations in a lattice of superconducting qubits. For confined excitations, the magnetic field induces a tension in the string connecting them. Our method allows us to experimentally image string dynamics in a (2+1)D LGT.
  arXiv  Detail & Related papers  (2024-09-25T17:59:05Z)
• Non-Uniform Magnetic Fields for Single-Electron Control [0.0]
  A gauge-invariant formulation of the Wigner equation for general electromagnetic fields has been proposed. We generalize this equation to include a general, non-uniform electric field and a linear, non-uniform magnetic field. This has led to explore a new type of transport inside electronic waveguides based on snake trajectories.
  arXiv  Detail & Related papers  (2023-11-10T19:05:54Z)
• Quantum Simulation of the Two-Dimensional Weyl Equation in a Magnetic Field [0.0]
  We show the linear dispersion relation of the free particle and the discrete Landau levels in a magnetic field. We explicitly measure the spatial and spin dynamics from which the conservation of helicity and properties of antiparticles can be verified.
  arXiv  Detail & Related papers  (2022-05-27T15:17:42Z)
• Dispersive readout of molecular spin qudits [68.8204255655161]
  We study the physics of a magnetic molecule described by a "giant" spin with multiple $d > 2$ spin states. We derive an expression for the output modes in the dispersive regime of operation. We find that the measurement of the cavity transmission allows to uniquely determine the spin state of the qudits.
  arXiv  Detail & Related papers  (2021-09-29T18:00:09Z)
• Demonstration of electron-nuclear decoupling at a spin clock transition [54.088309058031705]
  Clock transitions protect molecular spin qubits from magnetic noise. linear coupling to nuclear degrees of freedom causes a modulation and decay of electronic coherence. An absence of quantum information leakage to the nuclear bath provides opportunities to characterize other decoherence sources.
  arXiv  Detail & Related papers  (2021-06-09T16:23:47Z)
• Synthetic gauge potentials for the dark state polaritons in atomic media [0.0]
  We propose an optical scheme to generate effective gauge potentials for stationary-light polaritons. Our scheme paves a novel way towards the investigation of the bosonic analogue of the fractional quantum Hall effect by electromagnetically induced transparency.
  arXiv  Detail & Related papers  (2021-04-22T13:06:22Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• General quantum-mechanical solution for twisted electrons in a uniform magnetic field [68.8204255655161]
  A theory of twisted (and other structured) paraxial electrons in a uniform magnetic field is developed. The observable effect of a different behavior of relativistic Laguerre-Gauss beams with opposite directions of the orbital angular momentum penetrating from the free space into a magnetic field is predicted.
  arXiv  Detail & Related papers  (2020-05-13T16:35:10Z)
• Quantum coherent spin-electric control in a molecular nanomagnet at clock transitions [57.50861918173065]
  Electrical control of spins at the nanoscale offers architectural advantages in spintronics. Recent demonstrations of electric-field (E-field) sensitivities in molecular spin materials are tantalising. E-field sensitivities reported so far are rather weak, prompting the question of how to design molecules with stronger spin-electric couplings.
  arXiv  Detail & Related papers  (2020-05-03T09:27:31Z)
• Synthesizing three-body interaction of spin chirality with superconducting qubits [10.567608076469087]
  We propose and experimentally synthesize the three-body spin-chirality interaction in a superconducting circuit based on Floquet engineering. Our result is a step toward engineering dynamical and many-body interactions in multiqubit superconducting devices.
  arXiv  Detail & Related papers  (2020-02-05T19:06:05Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.