Quantum Teleportation Just Got Real: Achieving 90% Fidelity Amidst Noise

Physics Quantum Teleportation Art Concept Illustration

High-fidelity quantum teleportation has been achieved by research team using a new hybrid entanglement technique that counters environmental noise, with a success rate nearing 90%. Credit: SciTechDaily.com

Scientists have advanced quantum teleportation by mitigating noise interference through a novel method involving hybrid entanglement, achieving close to 90% fidelity in teleporting quantum states, which could significantly enhance secure quantum communication.

A research team led by Academician Guangcan Guo from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS), in collaboration with the research team at the University of Turku, Finland, successfully overcame environmental noise to achieve high-fidelity quantum teleportation by utilizing multipartite hybrid entanglement. Their findings were published recently in the journal Science Advances.

Overcoming Challenges in Quantum Teleportation

Quantum teleportation serves as a crucial protocol in quantum communication, enabling the remote transmission of unknown quantum states through the utilization of quantum entanglement. However, due to the fragile nature of quantum entanglement, quantum teleportation is highly susceptible to noise. Achieving high-fidelity quantum teleportation in noisy environments has been a pressing challenge.

Stages of Noisy Quantum Teleportation

Stages of noisy quantum teleportation. Credit: ZHAO-DI LIU et al.

Advancements in Quantum Noise Management

Previously, to address the decoherence issue of open quantum systems in a noisy environment, the research team devised a comprehensive method for regulating photon polarization and frequency, leveraging sophisticated optical path design and programmable spatial light modulators. This approach enabled them to create a fully controllable phase decoherence quantum simulator and achieve quantum teleportation that surpasses noise, utilizing nonlocal memory effects.

New Techniques in Quantum Teleportation

However, nonlocal memory effects require stringent quantum resources such as environmental entanglement, which are not generally attainable. Building on these results, the current work presents a more versatile quantum teleportation technique that effectively mitigates environmental noise.

Employing the fully controllable phase decoherence quantum simulator, the researchers introduced specific phase modulations into the environment to prepare a dual-photon polarization-frequency hybrid entangled initial state. Subsequently, these photons were distributed to two separate user terminals, where each underwent decoherence evolution.

Conclusion and Implications

Ultimately, through classical communication, the researchers executed suitable unitary operations on the retrieved quantum bits to restore the transmitted quantum state, achieving a measured fidelity approaching 90%. The polarization states never violated Bell’s inequality, indicating quantum teleportation based on hidden quantum nonlocality.

This method offers a new way to overcome environmental noise, distinct from conventional techniques such as dynamic decoupling and decoherence-free subspaces, and enhances the understanding of quantum nonlocality.

Reference: “Overcoming noise in quantum teleportation with multipartite hybrid entanglement” by Zhao-Di Liu, Olli Siltanen, Tom Kuusela, Rui-Heng Miao, Chen-Xi Ning, Chuan-Feng Li, Guang-Can Guo and Jyrki Piilo, 1 May 2024, Science Advances.
DOI: 10.1126/sciadv.adj3435

15 Comments on "Quantum Teleportation Just Got Real: Achieving 90% Fidelity Amidst Noise"

  1. Cynthia Binder | June 13, 2024 at 1:22 pm | Reply

    Remember party line phones ☎️☎️☎️☎️☎️switchboard connects lines.
    Entanglement of quantum particles. Light from sun 🌞 is particles of nuclear.
    Tele port action.
    Fun to see the ______ faster to fastest .

  2. Bao-hua ZHANG | June 13, 2024 at 7:32 pm | Reply

    In physics, quantum is a discrete natural unit, or packet, of energy, charge, angular momentum, or other physical property. What is the space-time structure of the discrete natural units or packages?
    From cosmic accretion disks to quantum spins, topological vortex gravitational field is ubiquitous. The rotation of topological vortices is spin. Spin generates energy. Spin generates charge. Spin generates angular momentum. Spin generates time. Topological vortices endow humans with intelligence and life via self-organization.
    From energy control, chip manufacturing, to communication methods, whoever masters topological intelligence can lead and dominate the future of human society.
    —-Extracted from https://zhuanlan.zhihu.com/p/701333717.

  3. Read through the article twice, Man am I dumb,,🤓 I could probably read it a hundred times and still not really understand wtf they said,,I do get the jist of it tho ! 😎

    • No, you are not dumb. Any article dealing with quantum this or quantum that can be a challenge to comprehend. I had a terrible time with this article myself. I wish that whoever writes such articles would use comprehensible English instead of technical gobbledygook.

  4. I’ll wait till organizations not connected with the CCP duplicate before celebrating.
    Till replicated this is Xi propaganda.

  5. Ficovinazlodejina | June 15, 2024 at 7:06 am | Reply

    If I understand correctly, they achieved success on a simulator. Well, not in reality.

  6. Peter Jackson | June 15, 2024 at 10:07 am | Reply

    This works seems not to recognise the recent Nature paper deriving ‘entanglement’ and the QM experimental data with a causal sequence as Bell predicted. This ‘Discrete Field Model’ (DFM) case shows that identical pairs with shared polar axis interacting with A,B polariser particles can result in a ‘spin flipped’ output locally, explaining the ‘entanglement’ effect. So called ‘Quantum Spin’ is replaced as a QM assumption by Maxwell’s 2ND inverse & orthogonal momentum pair in OAM. Here it’s ‘QM’ itself that gets real, as EPR suggested, not ‘teleportation’!! See; Springer-Nature Foundations of Physics, (2021) 51:77

    • Bao-hua ZHANG | June 16, 2024 at 1:46 am | Reply

      Please answer:
      1. Do Nature magazine understand the physical nature of quantum?
      2. Is it scientific and rigorous to analogize quantum with a cat?
      3. Is the physical phenomenon you observed in the experiment the physical reality of quantum ?

    • So,doesn’t all of this,if you dumb it down for us regular folks point to the fact that all of these quantum studies and equations are a distraction from just coming clean about the lie that is a round earth bs? Wouldn’t quantum mechanics point to one creator, rather than a big bang theory? Teleportation happens in our dreams, we are somewhere else at the same time, we are home asleep and it’s that simple..a mirror can be a portal if you want it to be if you join with dark forces, which many due..I mean, who or whom is really in charge of the giant computer in Switzerland? Let’s just make this simple…it is, in its own self, it’s very nature that people ordain it to be, by pretending to play God. Humans can’t Conquer God. We can’t leave a closed system, except by a dark portal and even Quantum sciences point to creationism

  7. It’s clear to me that due to the relative novelty of the science and its concepts, this article is simply impossible to report in layman terms at this time.

    • LMFAO. When I read this article, I kept thinking about Geordi LaForge and Lieutenant Data.I was waiting for a Heisenberg Compensator to be mentioned, instead got a real chuckle from subspace being used.

  8. What I got… This could lead to instant communication to anywhere thanks to entanglement. If we were only interstellar or at least had a mattress base, I could see the use of this. What do I know? My degrees in Philosophy.lol.

  9. Lol auto correct M a r s B a s e, not mattress lol omfng

  10. Primero divagué con teletransportación de seres vivos, luego quizá lo entendí. Teletransportacion de sonido? oTransmisión de sonido eliminando los ruidos del medio ambiente y pensé que esta info será util para ingenieros de sonido en estudios de grabación?
    Con mi pregunta dejo demostrado que no entendí nada en absoluto verdad?

Leave a comment

Email address is optional. If provided, your email will not be published or shared.