Generation of tripartite entangled states with fermionic systems
- URL: http://arxiv.org/abs/2406.00533v1
- Date: Sat, 1 Jun 2024 18:51:28 GMT
- Title: Generation of tripartite entangled states with fermionic systems
- Authors: M D Jiménez, A Valdés-Hernández, A P Majtey,
- Abstract summary: tunneling plus particle-detection process aimed at generating tripartite entanglement in a system of 3 indistinguishable fermions in a triple-well potential.
protocol succeeds in generating fermionic w-type states, and the ensuing state becomes effectively equivalent to a 3-distinguishable-qubit w-type state shared among three localized parties.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: We propose a protocol based on a tunneling plus particle-detection process aimed at generating tripartite entanglement in a system of 3 indistinguishable fermions in a triple-well potential, initially prepared in a state exhibiting only exchange correlations. Particular attention is paid to the generation of fermionic ghz- and w-type states, which are analogous to the usual ghz- and w-type states defined in composites of distinguishable qubits. The protocol succeeds in generating fermionic w-type states, and the ensuing state becomes effectively equivalent to a 3-distinguishable-qubit w-type state shared among three localized parties. The protocol, however, is unable to generate ghz-type states, a result that highlights the fundamental inequivalence between these two types of states, and throws light into the characterization of processes that guarantee the emergence of specific kinds of multipartite entanglement in systems of identical parties. Our findings suggest new paths for the exploration, generation and exploitation of multipartite entanglement in composites of indistinguishable particles, as a useful resource for quantum information processing.
Related papers
- Experimental roadmap for optimal state transfer and entanglement
generation in power-law systems [0.0]
We provide an experimental roadmap towards realizing fast state-transfer protocols in atomic and molecular systems with dipolar interactions.
We evaluate the tradeoffs between the two protocols for small system sizes and develop methods to address potential crosstalk errors.
arXiv Detail & Related papers (2024-02-12T19:00:00Z) - Optimal entanglement generation in GHZ-type states [0.5497663232622965]
We identify processes that favor the fastest and sustained generation of tripartite entanglement in a class of 3-qubit GHZ-type states.
Our results expand our understanding of entanglement rates to multipartite systems, and offer guidance regarding the strategies that improve the efficiency in various quantum information processing tasks.
arXiv Detail & Related papers (2023-10-26T12:57:01Z) - Controlling entanglement in a triple-well system of dipolar atoms [0.0]
We study the dynamics of entanglement and atomic populations of ultracold dipolar bosons in an aligned three-well potential.
We propose a protocol that includes an integrability breaking step by tilting the edge wells for a short time through an external field.
arXiv Detail & Related papers (2023-05-16T19:01:38Z) - Neural-network quantum states for ultra-cold Fermi gases [49.725105678823915]
This work introduces a novel Pfaffian-Jastrow neural-network quantum state that includes backflow transformation based on message-passing architecture.
We observe the emergence of strong pairing correlations through the opposite-spin pair distribution functions.
Our findings suggest that neural-network quantum states provide a promising strategy for studying ultra-cold Fermi gases.
arXiv Detail & Related papers (2023-05-15T17:46:09Z) - 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) - Mechanism for particle fractionalization and universal edge physics in
quantum Hall fluids [58.720142291102135]
We advance a second-quantization framework that helps reveal an exact fusion mechanism for particle fractionalization in FQH fluids.
We also uncover the fundamental structure behind the condensation of non-local operators characterizing topological order in the lowest-Landau-level (LLL)
arXiv Detail & Related papers (2021-10-12T18:00:00Z) - Interplay between transport and quantum coherences in free fermionic
systems [58.720142291102135]
We study the quench dynamics in free fermionic systems.
In particular, we identify a function, that we dub emphtransition map, which takes the value of the stationary current as input and gives the value of correlation as output.
arXiv Detail & Related papers (2021-03-24T17:47:53Z) - Entanglement purification by counting and locating errors with
entangling measurements [62.997667081978825]
We consider entanglement purification protocols for multiple copies of qubit states.
We use high-dimensional auxiliary entangled systems to learn about number and positions of errors in the noisy ensemble.
arXiv Detail & Related papers (2020-11-13T19:02:33Z) - A multiconfigurational study of the negatively charged nitrogen-vacancy
center in diamond [55.58269472099399]
Deep defects in wide band gap semiconductors have emerged as leading qubit candidates for realizing quantum sensing and information applications.
Here we show that unlike single-particle treatments, the multiconfigurational quantum chemistry methods, traditionally reserved for atoms/molecules, accurately describe the many-body characteristics of the electronic states of these defect centers.
arXiv Detail & Related papers (2020-08-24T01:49:54Z) - Comparison of entangling protocols in ABC-type spin chains [0.0]
A device based on coupled spins capable of generating and sharing out an entangled pair of qubits is presented.
Three different entangling protocols were proposed for this chain in [1] and [2].
Here we compare the robustness of such protocols against different types of fabrication (static energy fluctuations) and operation (timing injection delays) errors.
arXiv Detail & Related papers (2020-05-27T09:26:03Z) - Triplet-Triplet Decoherence in Singlet Fission [0.0]
We introduce new results from quantum information theory which enables the quantification of coherence and entanglement in a bi- and multipartite system.
We demonstrate that these observables can act as a proxy for the coherence and entanglement measures.
The decay of both of these between the two local triplets can be monitored, enabling a clear definition of the spin-decoherence process in singlet fission.
arXiv Detail & Related papers (2020-04-02T15:04:29Z)
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.