Fermilab and partners achieve sustained, high-fidelity quantum teleportation

erek

erek

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““With this demonstration we’re beginning to lay the foundation for the construction of a Chicago-area metropolitan quantum network,” Spentzouris said. The Chicagoland network, called the Illinois Express Quantum Network, is being designed by Fermilab in collaboration with Argonne National Laboratory, Caltech, Northwestern University and industry partners.

This research was supported by DOE’s Office of Science through the Quantum Information Science-Enabled Discovery (QuantISED) program.

“The feat is a testament to success of collaboration across disciplines and institutions, which drives so much of what we accomplish in science,” said Fermilab Deputy Director of Research Joe Lykken. “I commend the IN-Q-NET team and our partners in academia and industry on this first-of-its-kind achievement in quantum teleportation.””

https://news.fnal.gov/2020/12/fermi...ustained-high-fidelity-quantum-teleportation/
 
erek said:
““With this demonstration we’re beginning to lay the foundation for the construction of a Chicago-area metropolitan quantum network,” Spentzouris said. The Chicagoland network, called the Illinois Express Quantum Network, is being designed by Fermilab in collaboration with Argonne National Laboratory, Caltech, Northwestern University and industry partners.

This research was supported by DOE’s Office of Science through the Quantum Information Science-Enabled Discovery (QuantISED) program.

“The feat is a testament to success of collaboration across disciplines and institutions, which drives so much of what we accomplish in science,” said Fermilab Deputy Director of Research Joe Lykken. “I commend the IN-Q-NET team and our partners in academia and industry on this first-of-its-kind achievement in quantum teleportation.””

https://news.fnal.gov/2020/12/fermi...ustained-high-fidelity-quantum-teleportation/
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All is proceeding as foretold.
 
holy "beam me up scotty", batman !

the current smartphone is better than any personal comm that ST had (we have Facetime and video!)
just need the warp drive, medical tricorder and food replicator to go along with the transporter
 
sunruh said:
holy "beam me up scotty", batman !

the current smartphone is better than any personal comm that ST had (we have Facetime and video!)
just need the warp drive, medical tricorder and food replicator to go along with the transporter
Click to expand...
The food replicator is just a transporter with storage and a menu.
 
sunruh said:
holy "beam me up scotty", batman !

the current smartphone is better than any personal comm that ST had (we have Facetime and video!)
just need the warp drive, medical tricorder and food replicator to go along with the transporter
Click to expand...
You'll also need some sort of shields (don't want to hit stuff in space going warp speed), and of course inertial dampers so you don't turn the crew into tomato sauce... oh yeah don't forget the magic of "dilithium crystals" and the absolutely stellar levels of energy needed to power all that shit....
 
so the building block of extreme distance with super little lag.

but what happens when the atom splits?
 
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From what I understand with that technic you cannot know in advance what will be sent, which is not an issue it can be even a feature in some security base affair when it does not matter what is sent just that it end up both the same for both party like an key for encryption protocol.

Has far has I know sending actual information actually faster than light like Einstein predicted that it would be impossible is yet to be done.

Quantum teleportation is a technique for transferring quantum information from a sender at one location to a receiver some distance away. While teleportation is commonly portrayed in science fiction as a means to transfer physical objects from one location to the next, quantum teleportation only transfers quantum information. An important note is that the sender knows neither the location of the recipient nor the quantum state that will be transferred.

The quantum channel is the communication mechanism that is used for all quantum information transmission and is the channel used for teleportation (relationship of quantum channel to traditional communication channel is akin to the qubit being the quantum analog of the classical bit). However, in addition to the quantum channel, a traditional channel must also be used to accompany a qubit to "preserve" the quantum information. When the change measurement between the original qubit and the entangled particle is made, the measurement result must be carried by a traditional channel so that the quantum information can be reconstructed and the receiver can get the original information. Because of this need for the traditional channel, the speed of teleportation can be no faster than the speed of light because of the no-communication theorem. The main advantage with this is that Bell states can be shared using photons from lasers making teleportation achievable through open space having no need to send information through physical cables or optical fibers.

Is that new experiment finding change anything to that (i.e. speed for which actual data is sent is not something that would change by any of this, only security that could become completely different in a very physical law impossible to hack without people knowing about it ways)
 
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deruberhanyok said:
it has always been able to run cyberpunk.

-or-

It could, but as soon as you try to watch it the game will change.
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"Entanglement on an optical atomic-clock transition

State-of-the-art atomic clocks are based on the precise detection of the energy difference between two atomic levels, which is measured in terms of the quantum phase accumulated over a given time interval1,2,3,4. The stability of optical-lattice clocks (OLCs) is limited both by the interrupted interrogation of the atomic system by the local-oscillator laser (Dick noise5) and by the standard quantum limit (SQL) that arises from the quantum noise associated with discrete measurement outcomes. Although schemes for removing the Dick noise have been recently proposed and implemented4,6,7,8, performance beyond the SQL by engineering quantum correlations (entanglement) between atoms9,10,11,12,13,14,15,16,17,18,19,20 has been demonstrated only in proof-of-principle experiments with microwave clocks of limited stability. The generation of entanglement on an optical-clock transition and operation of an OLC beyond the SQL represent important goals in quantum metrology, but have not yet been demonstrated experimentally16. Here we report the creation of a many-atom entangled state on an OLC transition, and use it to demonstrate a Ramsey sequence with an Allan deviation below the SQL after subtraction of the local-oscillator noise. We achieve a metrological gain of 4.4+0.6−0.44.4−0.4+0.6 decibels over the SQL by using an ensemble consisting of a few hundred ytterbium-171 atoms, corresponding to a reduction of the averaging time by a factor of 2.8 ± 0.3. Our results are currently limited by the phase noise of the local oscillator and Dick noise, but demonstrate the possible performance improvement in state-of-the-art OLCs1,2,3,4 through the use of entanglement. This will enable further advances in timekeeping precision and accuracy, with many scientific and technological applications, including precision tests of the fundamental laws of physics21,22,23, geodesy24,25,26 and gravitational-wave detection27."

https://www.sciencealert.com/engine...cise-clock-that-keeps-time-using-entanglement
 
erek said:
““With this demonstration we’re beginning to lay the foundation for the construction of a Chicago-area metropolitan quantum network,” Spentzouris said. The Chicagoland network, called the Illinois Express Quantum Network, is being designed by Fermilab in collaboration with Argonne National Laboratory, Caltech, Northwestern University and industry partners.

This research was supported by DOE’s Office of Science through the Quantum Information Science-Enabled Discovery (QuantISED) program.

“The feat is a testament to success of collaboration across disciplines and institutions, which drives so much of what we accomplish in science,” said Fermilab Deputy Director of Research Joe Lykken. “I commend the IN-Q-NET team and our partners in academia and industry on this first-of-its-kind achievement in quantum teleportation.””

https://news.fnal.gov/2020/12/fermi...ustained-high-fidelity-quantum-teleportation/
Click to expand...
Can this be used to make Pornhub’s search function more accurate? Asking for a friend
 
Engadget like 3 days behind the curve,

"A successful experiment gets us one step closer to a quantum internet" -- https://www.engadget.com/fermilab-quantum-teleportation-report-221002594.html


"Quantum teleportation is essential for many quantum information technologies, including long-distance quantum networks. Using fiber-coupled devices, including state-of-the-art low-noise superconducting nanowire single-photon detectors and off-the-shelf optics, we achieve conditional quantum teleportation of time-bin qubits at the telecommunication wavelength of 1536.5 nm. We measure teleportation fidelities of ≥90% that are consistent with an analytical model of our system, which includes realistic imperfections. To demonstrate the compatibility of our setup with deployed quantum networks, we teleport qubits over 22 km of single-mode fiber while transmitting qubits over an additional 22 km of fiber. Our systems, which are compatible with emerging solid-state quantum devices, provide a realistic foundation for a high-fidelity quantum Internet with practical devices.

A functional quantum Internet, a network in which information stored in qubits is shared over long distances through entanglement, would change the fields of secure communication, data storage, precision sensing, and computing. High-fidelity quantum teleportation is essential for secure long-distance communications and a practical quantum Internet. This work presents—for the first time—sustained, long-distance (44 km of fiber) teleportation of time-bin qubits featuring state-of-the-art fidelity (>90%) and narrow-band photons with narrow-band entangled photon pairs. The experimental results are supported by an analytical model that accurately accounts for experimental imperfections.

The measurements are performed on the Caltech and Fermilab Quantum Network test beds (CQNET, FQNET), two teleportation systems that have been designed, built, commissioned, and deployed by Caltech’s multidisciplinary multi-institutional public-private research program on Intelligent Quantum Networks and Technologies (IN-Q-NET). IN-Q-NET was jointly founded in 2017 by Caltech, AT&T, Fermi National Accelerator Laboratory, and the Jet Propulsion Laboratory.

These unique quantum network test beds use state-of-the-art solid-state light detectors in a compact fiber-based setup and feature near-autonomous data acquisition, control, monitoring, synchronization, and analysis. The teleportation systems, which are compatible both with existing telecommunication infrastructure and with emerging quantum processing and storage devices, represent a significant milestone towards a practical quantum Internet. These networks are currently being used to improve the fidelity and rate of entanglement distribution, with an emphasis on complex quantum communication protocols and fundamental science. The networks are accessible to multidisciplinary researchers for research and development purposes and will serve both fundamental quantum information science and the development of advanced quantum technologies."
 
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