Genuine multipartite entanglement from many-electron systems

• URL: http://arxiv.org/abs/2410.11314v2
• Date: Wed, 12 Feb 2025 08:12:07 GMT
• Title: Genuine multipartite entanglement from many-electron systems
• Authors: Filippo Troiani, Celestino Angeli, Andrea Secchi, Stefano Pittalis,
• Abstract summary: We show that genuine multipartite entanglement can be generated from simple non-correlated many-electron states. We rationalize system-specific and universal features of the extracted GME.
• Score: 0.0
• License:
• Abstract: We demonstrate that, contrary to common wisdom, genuine multipartite entanglement (GME) can be abundantly generated from simple non-correlated many-electron states. We show that the extracted GME can be maximized via spin-independent transformations derived from the quantum Fourier transform. We further demonstrate the possibility of maximizing the GME through localized orbitals in a variety of realistic systems and correlated states. Towards the exploitation of potentially useful entanglement, we rationalize system-specific and universal features of the extracted GME.

Related papers

• Generation of Scalable Genuine Multipartite Gaussian Entanglement with a Parametric Amplifier Network [0.0]
  We propose a scheme to generate scalable genuine multipartite continuous-variable entangled states of light using a parametric amplifier network. We verify the presence of genuine quadripartite, hexapartite, and octapartite entanglement through a violation of the positive partial transpose (PPT) criteria.
  arXiv  Detail & Related papers  (2024-09-04T03:42:48Z)
• Genuine Multipartite Entanglement induced by a Thermal Acoustic Reservoir [5.019440371763441]
  Genuine multipartite entanglement (GME) is essential for realizing universal quantum computing and quantum networks. Here we investigate the multipartite entanglement (ME) dynamics in a linear chain of N LC resonators interacting optomechanically with a common thermal acoustic reservoir. This work fundamentally broadens the fields of ME, and have wide applications in implementing thermal-noise-resistant quantum information processing and many-body quantum simulation.
  arXiv  Detail & Related papers  (2024-06-19T14:10:50Z)
• Deep thermalization in Gaussian continuous-variable quantum systems [2.979579757819132]
  We study the ensemble of pure states supported on a small subsystem of a few modes. We find that the induced ensemble attains a universal form, independent of the choice of measurement basis.
  arXiv  Detail & Related papers  (2024-05-09T00:01:23Z)
• Gaussian Entanglement Measure: Applications to Multipartite Entanglement of Graph States and Bosonic Field Theory [50.24983453990065]
  An entanglement measure based on the Fubini-Study metric has been recently introduced by Cocchiarella and co-workers. We present the Gaussian Entanglement Measure (GEM), a generalization of geometric entanglement measure for multimode Gaussian states. By providing a computable multipartite entanglement measure for systems with a large number of degrees of freedom, we show that our definition can be used to obtain insights into a free bosonic field theory.
  arXiv  Detail & Related papers  (2024-01-31T15:50:50Z)
• Multi-copy activation of genuine multipartite entanglement in continuous-variable systems [0.0]
  Multi-copy activation of genuine multipartite entanglement (GME) is a phenomenon whereby multiple copies of biseparable but fully inseparable states can exhibit GME. We provide examples of GME-activatable non-Gaussian states.
  arXiv  Detail & Related papers  (2023-12-27T13:35:35Z)
• $Q$-Deformed Rainbows: a Universal Simulator of Free Entanglement Spectra [0.0]
  We present a spin chain with position-dependent XX couplings and magnetic fields, that can reproduce arbitrary structure of free fermion correlations across a bipartition. Our method can be easily employed for the generation of arbitrary entanglement spectra with possible applications in quantum technologies and condensed matter physics.
  arXiv  Detail & Related papers  (2023-02-03T19:00:59Z)
• 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)
• Visualizing spinon Fermi surfaces with time-dependent spectroscopy [62.997667081978825]
  We propose applying time-dependent photo-emission spectroscopy, an established tool in solid state systems, in cold atom quantum simulators. We show in exact diagonalization simulations of the one-dimensional $t-J$ model that the spinons start to populate previously unoccupied states in an effective band structure. The dependence of the spectral function on the time after the pump pulse reveals collective interactions among spinons.
  arXiv  Detail & Related papers  (2021-05-27T18:00:02Z)
• Quantum Markov Chain Monte Carlo with Digital Dissipative Dynamics on Quantum Computers [52.77024349608834]
  We develop a digital quantum algorithm that simulates interaction with an environment using a small number of ancilla qubits. We evaluate the algorithm by simulating thermal states of the transverse Ising model.
  arXiv  Detail & Related papers  (2021-03-04T18:21:00Z)
• QuTiP-BoFiN: A bosonic and fermionic numerical hierarchical-equations-of-motion library with applications in light-harvesting, quantum control, and single-molecule electronics [51.15339237964982]
  "hierarchical equations of motion" (HEOM) is a powerful exact numerical approach to solve the dynamics. It has been extended and applied to problems in solid-state physics, optics, single-molecule electronics, and biological physics. We present a numerical library in Python, integrated with the powerful QuTiP platform, which implements the HEOM for both bosonic and fermionic environments.
  arXiv  Detail & Related papers  (2020-10-21T07:54:56Z)
• Exact representations of many body interactions with RBM neural networks [77.34726150561087]
  We exploit the representation power of RBMs to provide an exact decomposition of many-body contact interactions into one-body operators. This construction generalizes the well known Hirsch's transform used for the Hubbard model to more complicated theories such as Pionless EFT in nuclear physics.
  arXiv  Detail & Related papers  (2020-05-07T15:59:29Z)

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.