Achieving the Heisenberg limit in quantum metrology using quantum error correction

• Published in: Nature communications Vol. 9; no. 1; pp. 78 - 11
• Main Authors: Zhou, Sisi, Zhang, Mengzhen, Preskill, John, Jiang, Liang
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 08.01.2018; Nature Publishing Group; Nature Portfolio
• Subjects: 639/766/483/1139; 639/766/483/1255; 639/766/483/481; Error correcting codes; Error correction; Error correction & detection; Gravitational waves; Gravity; Humanities and Social Sciences; Markov processes; Metrology; multidisciplinary; Noise; Quantum mechanics; Quantum theory; Science; Science (multidisciplinary); Spectroscopy

Quantum metrology has many important applications in science and technology, ranging from frequency spectroscopy to gravitational wave detection. Quantum mechanics imposes a fundamental limit on measurement precision, called the Heisenberg limit, which can be achieved for noiseless quantum systems,...