Download Published Version (PDF / 523kB).pdf

PhysRevA.93.023805.pdf
Preview of Download Published Version (PDF / 523kB)
🔗 Source: oro.open.ac.uk
📊 Size: 511 KB
📄 Pages: 9 pages
⬇️ Downloads: 107

Summary

Researchers propose a quantum metrology scheme using a cold-atom architecture to achieve supraclassical measurement sensitivity by exploiting quantum correlations in mixed states of many qubits. The scheme uses a single "clean" control qubit and a register of partially mixed register qubits, generating correlations via a conditional quantum gate. The protocol can scale to a large number of register qubits while maintaining coherent operation, allowing for ultraprecise measurement of physical quantities such as gravitational or magnetic fields. The scheme's sensitivity can exceed the standard quantum limit, even with highly mixed probe states, by utilizing quantum discord and nonclassical correlations between probe qubits.

Description

Researchers propose a quantum metrology scheme using a cold-atom architecture to achieve supraclassical measurement sensitivity by exploiting quantum...

Technical Information

  • File Format: PDF
  • File Size: 511 KB
  • Pages: 9
  • Language: EN
  • Total Downloads: 107
  • Last Updated: 1 month ago

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