Excitation dynamics in inductively coupled fluxonium circuits

• URL: http://arxiv.org/abs/2104.03300v1
• Date: Wed, 7 Apr 2021 17:55:53 GMT
• Title: Excitation dynamics in inductively coupled fluxonium circuits
• Authors: A. Bar{\i}\c{s} \"Ozg\"uler, Vladimir E. Manucharyan, Maxim G. Vavilov
• Abstract summary: We propose a near-term quantum simulator based on the fluxonium qubits inductively coupled to form a chain. This system provides long coherence time, large anharmonicity, and strong coupling, making it suitable to study Ising spin models.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We propose a near-term quantum simulator based on the fluxonium qubits inductively coupled to form a chain. This system provides long coherence time, large anharmonicity, and strong coupling, making it suitable to study Ising spin models. At the half-flux quantum sweet spot, the system is described by the transverse field Ising model (TFIM). We evaluate the propagation of qubit excitations through the system. As disorder increases, the excitations become localized. A single qubit measurement using the circuit QED methods is sufficient to identify localization transition without introducing tunable couplers. We argue that inductively coupled fluxoniums provide opportunities to study localization and many-body effects in highly coherent quantum systems.

Related papers

• Stochastic modeling of superconducting qudits in the dispersive regime [0.0773931605896092]
  This work focuses on modeling the dispersive quadrature measurement in an open quantum system. We verify our model with a series of experimental results on a transmon-type qutrit.
  arXiv  Detail & Related papers  (2023-10-29T00:39:47Z)
• Dissipative preparation and stabilization of many-body quantum states in a superconducting qutrit array [55.41644538483948]
  We present and analyze a protocol for driven-dissipatively preparing and stabilizing a manifold of quantum manybody entangled states. We perform theoretical modeling of this platform via pulse-level simulations based on physical features of real devices. Our work shows the capacity of driven-dissipative superconducting cQED systems to host robust and self-corrected quantum manybody states.
  arXiv  Detail & Related papers  (2023-03-21T18:02:47Z)
• Quantum emulation of the transient dynamics in the multistate Landau-Zener model [50.591267188664666]
  We study the transient dynamics in the multistate Landau-Zener model as a function of the Landau-Zener velocity. Our experiments pave the way for more complex simulations with qubits coupled to an engineered bosonic mode spectrum.
  arXiv  Detail & Related papers  (2022-11-26T15:04:11Z)
• Tuning long-range fermion-mediated interactions in cold-atom quantum simulators [68.8204255655161]
  Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Here, we propose several tuning knobs, accessible in current experimental platforms, that allow to further control the range and shape of the mediated interactions.
  arXiv  Detail & Related papers  (2022-03-31T13:32:12Z)
• Quantum dynamics of open many-qubit systems strongly coupled to a quantized electromagnetic field in dissipative cavities [0.0]
  We study quantum dynamics of many-qubit systems strongly coupled to a quantized electromagnetic cavity mode. We show that depending on the initial quantum state preparation, the systems can evolve into a rich variety of entangled states.
  arXiv  Detail & Related papers  (2021-05-31T02:08:11Z)
• Entanglement from tensor networks on a trapped-ion QCCD quantum computer [2.943524728957949]
  We experimentally demonstrate a significant benefit of this approach to quantum simulation. In addition to all correlation functions, the entanglement structure of an infinite system is conveniently encoded within a small register of "bond qubits" We quantitatively determine the near-critical entanglement entropy of a correlated spin chain directly in the thermodynamic limit.
  arXiv  Detail & Related papers  (2021-04-22T18:00:00Z)
• Importance Sampling Scheme for the Stochastic Simulation of Quantum Spin Dynamics [0.0]
  We develop an importance sampling scheme for the simulation of quantum spin dynamics. An exact transformation is then carried out to preferentially sample trajectories that are close to the dominant one. We demonstrate that this approach is capable of reducing the temporal growth of fluctuations in the quantities.
  arXiv  Detail & Related papers  (2021-03-30T16:18:28Z)
• Enhancement of quantum correlations and geometric phase for a driven bipartite quantum system in a structured environment [77.34726150561087]
  We study the role of driving in an initial maximally entangled state evolving under a structured environment. This knowledge can aid the search for physical setups that best retain quantum properties under dissipative dynamics.
  arXiv  Detail & Related papers  (2021-03-18T21:11:37Z)
• Assessment of weak-coupling approximations on a driven two-level system under dissipation [58.720142291102135]
  We study a driven qubit through the numerically exact and non-perturbative method known as the Liouville-von equation with dissipation. We propose a metric that may be used in experiments to map the regime of validity of the Lindblad equation in predicting the steady state of the driven qubit.
  arXiv  Detail & Related papers  (2020-11-11T22:45:57Z)
• Stoquasticity in circuit QED [78.980148137396]
  We show that scalable sign-problem free path integral Monte Carlo simulations can typically be performed for such systems. We corroborate the recent finding that an effective, non-stoquastic qubit Hamiltonian can emerge in a system of capacitively coupled flux qubits.
  arXiv  Detail & Related papers  (2020-11-02T16:41:28Z)
• Anneal-path correction in flux qubits [0.0]
  Quantum annealers require accurate control and optimized operation schemes to reduce noise levels. We study a high coherence four-junction capacitively shunted flux qubit (CSFQ)
  arXiv  Detail & Related papers  (2020-02-25T23:04:07Z)

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.