Vortex bound states in dimerized $π$-flux optical lattices: characterization, state preparation and current measurement

• URL: http://arxiv.org/abs/2410.06184v1
• Date: Tue, 8 Oct 2024 16:45:44 GMT
• Title: Vortex bound states in dimerized $π$-flux optical lattices: characterization, state preparation and current measurement
• Authors: Andrei A. Stepanenko, Marco Di Liberto,
• Abstract summary: We show that vortex bound states of two bosons appear in dimerized square lattices pierced by a uniform $pi$-flux for moderate interactions. We characterize their properties, including chirality-changing decay channels induced by flux detuning. We develop protocols to perform state preparation in optical lattices via adiabatic sequences or recently developed current imprinting methods.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Lattice models display bound states for repulsive interactions that smoothly connect to high-energy two-particle states of doubly occupied sites, namely doublons, for strong onsite interactions. In this work, we show that a distinct type of repulsively bound states, namely vortex bound states of two bosons, appear in dimerized square lattices pierced by a uniform $\pi$-flux for moderate interactions. By focusing on a ladder geometry as an illustrative example, we characterize their properties, including chirality-changing decay channels induced by flux detuning, and we develop protocols to perform state preparation in optical lattices via adiabatic sequences or recently developed current imprinting methods. Finally, we show how to measure currents and thus chirality by quenching the system onto isolated pairs of nearest-neighbor sites and then sampling the corresponding dynamics. These results can also provide an experimentally realistic strategy for state preparation and probing of chiral gapped many-body phases in optical lattices.

Related papers

• Exotic localization for the two body bound states in the non-reciprocal Hubbard model [9.166422816832855]
  We investigate the localization behavior of two-body Hubbard model in the presence of non-reciprocal tunneling. We present the non-Hermitian bound states obtained with the center of mass methods in the conditions of strong repulsive interaction.
  arXiv  Detail & Related papers  (2024-09-12T09:43:33Z)
• Fermionization and collective excitations of 1D polariton lattices [0.0]
  We show that the hallmarks of correlation and fermionization in a one-dimensional exciton-polaritons gas can be observed with state-of-the-art technology. Our work encourages future experiments aimed at observing, for the first time, strongly correlated exciton-polariton physics.
  arXiv  Detail & Related papers  (2024-05-03T17:09:12Z)
• Asymptotically-deterministic robust preparation of maximally entangled bosonic states [1.7188280334580195]
  We introduce a theoretical scheme to prepare a pure Bell singlet state of two bosonic qubits, in a way that is robust under the action of arbitrary local noise. We employ a polarization-insensitive, non-absorbing, parity check detector in an iterative process which achieves determinismally with the number of repetitions. We conclude that the proposed protocol can be employed to prepare any pure state of two bosons which are maximally entangled in either the internal degree of freedom (Bell states) or the spatial mode (NOON states)
  arXiv  Detail & Related papers  (2023-03-20T22:40:57Z)
• Symmetry-protected topological corner modes in a periodically driven interacting spin lattice [0.0]
  Floquet symmetry protected second-order topological phases in a simple but insightful two-dimensional spin-1/2 lattice. We show that corner localized $mathbbZ$ symmetry broken operators commute and anticommute with the one-period time evolution operator. We propose a means to detect the signature of such modes in experiments and discuss the effect of imperfections.
  arXiv  Detail & Related papers  (2022-06-14T07:51:20Z)
• Non-Gaussian superradiant transition via three-body ultrastrong coupling [62.997667081978825]
  We introduce a class of quantum optical Hamiltonian characterized by three-body couplings. We propose a circuit-QED scheme based on state-of-the-art technology that implements the considered model.
  arXiv  Detail & Related papers  (2022-04-07T15:39:21Z)
• Accessing the topological Mott insulator in cold atom quantum simulators with realistic Rydberg dressing [58.720142291102135]
  We investigate a realistic scenario for the quantum simulation of such systems using cold Rydberg-dressed atoms in optical lattices. We perform a detailed analysis of the phase diagram at half- and incommensurate fillings, in the mean-field approximation. We furthermore study the stability of the phases with respect to temperature within the mean-field approximation.
  arXiv  Detail & Related papers  (2022-03-28T14:55:28Z)
• Connecting steady-states of driven-dissipative photonic lattices with spontaneous collective emission phenomena [91.3755431537592]
  We use intuition to predict the formation of non-trivial photonic steady-states in one and two dimensions. We show that subradiant emitter configurations are linked to the emergence of steady-state light-localization in the driven-dissipative setting. These results shed light on the recently reported optically-defined cavities in polaritonic lattices.
  arXiv  Detail & Related papers  (2021-12-27T23:58:42Z)
• Phase diagram of Rydberg-dressed atoms on two-leg square ladders: Coupling supersymmetric conformal field theories on the lattice [52.77024349608834]
  We investigate the phase diagram of hard-core bosons in two-leg ladders in the presence of soft-shoulder potentials. We show how the competition between local and non-local terms gives rise to a phase diagram with liquid phases with dominant cluster, spin, and density-wave quasi-long-range ordering.
  arXiv  Detail & Related papers  (2021-12-20T09:46:08Z)
• Qubit-photon bound states in topological waveguides with long-range hoppings [62.997667081978825]
  Quantum emitters interacting with photonic band-gap materials lead to the appearance of qubit-photon bound states. We study the features of the qubit-photon bound states when the emitters couple to the bulk modes in the different phases. We consider the coupling of emitters to the edge modes appearing in the different topological phases.
  arXiv  Detail & Related papers  (2021-05-26T10:57:21Z)
• Exploring helical phases of matter in bosonic ladders [0.0]
  Strongly correlated helical states are known to appear for specific ratios of the particle and magnetic flux densities. We show that one of them can be accessed in systems with two-species hardcore bosons and on-site repulsions only.
  arXiv  Detail & Related papers  (2020-10-06T14:09:16Z)
• Engineering multipartite entangled states in doubly pumped parametric down-conversion processes [68.8204255655161]
  We investigate the quantum state generated by optical parametric down-conversion in a $chi(2) $ medium driven by two modes. The analysis shows the emergence of multipartite, namely 3- or 4-partite, entangled states in a subset of the modes generated by the process.
  arXiv  Detail & Related papers  (2020-07-23T13:53:12Z)

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.