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Related Concept Videos

Superconductor01:24

Superconductor

1.1K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
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Types Of Superconductors01:28

Types Of Superconductors

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A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
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Deterministic quantum state and gate teleportation between distant superconducting chips.

Jiawei Qiu1, Yang Liu1, Ling Hu1

  • 1Shenzhen Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China; International Quantum Academy, Shenzhen 518048, China; Guangdong Provincial Key Laboratory of Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.

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|December 18, 2024
PubMed
Summary
This summary is machine-generated.

Researchers achieved deterministic quantum teleportation between superconducting qubits on separate chips. This breakthrough overcomes challenges in quantum interconnects, paving the way for distributed quantum computing networks.

Keywords:
Flying microwave photonQuantum computingQuantum networkSuperconducting circuits

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Area of Science:

  • Quantum Information Science
  • Superconducting Quantum Computing
  • Quantum Communication Technology

Background:

  • Superconducting qubits are crucial for large-scale quantum computation.
  • Scaling quantum systems faces challenges with on-chip qubit integration.
  • Distributed quantum networks require reliable quantum communication between distant chips.

Purpose of the Study:

  • To demonstrate deterministic quantum teleportation and entangling gates between distant superconducting chips.
  • To overcome technical hurdles in quantum interconnects and microwave photon transfer.
  • To establish a foundational element for distributed quantum computation networks.

Main Methods:

  • Utilized superconducting qubits on separate chips.
  • Employed a 64-meter cryogenic cable bus with ultralow loss (0.32 dB/km).
  • Leveraged flying microwave photons for quantum state transfer.

Main Results:

  • Achieved deterministic teleportation of quantum states between distant chips.
  • Successfully implemented entangling gates across the separated superconducting qubits.
  • Generated high-fidelity remote entanglement via microwave photons.

Conclusions:

  • Demonstrated a key building block for distributed quantum computation using superconducting qubits.
  • Opened new possibilities for waveguide quantum electrodynamics and microwave quantum photonics.
  • Enabled reliable quantum communication essential for scaling quantum technologies.