RT Journal Article T1 Phase-shift amplification for precision measurements without nonclassical states A1 Luis Aina, Alfredo AB We propose a practical arrangement that allows one to reach the Heisenberg limit in precision phase-shift measurements. This is achieved via phase-shift amplification. The arrangement we propose is based on experimental processes already carried out and does not require the use of any special quantum state. PB American Physical Society SN 1050-2947 YR 2002 FD 2002-02 LK https://hdl.handle.net/20.500.14352/59677 UL https://hdl.handle.net/20.500.14352/59677 LA eng NO [1] Z. Y. Ou, Phys. Rev. A 55, 2598 (1997).[2] A. Luis and L. L. Sánchez-Soto, Progress in Optics, edited by E. Wolf (Elsevier, Amsterdam, 2000), Vol. 41, p. 421.[3] M. Brune, S. Haroche, J. M. Raimond, L. Davidovich, and N. Zagury, Phys. Rev. A 45, 5193 (1992); L. Davidovich, A. Maali, M. Brune, J. M. Raimond, and S. Haroche, Phys. Rev. Lett. 71, 2360 (1993); M. Brune, E. Hagley, J. Dreyer, X. Maître, A. Maali, C. Wunderlich, J. M. Raimond, and S. Haroche, ibid. 77, 4887 (1996); L. Davidovich, M. Brune, J. M. Raimond, and S. Haroche, Phys. Rev. A 53, 1295 (1996); J. M. Raimond, M. Brune, and S. Haroche, Phys. Rev. Lett. 79, 1964 (1997); S. Haroche, Phys. Today 51 (7), 36 (1998).[4] C. Monroe, D. M. Meekhof, B. E. King, and D. J. Wineland, Science 272, 1131 (1996).[5] J. C. Retamal and N. Zagury, Phys. Rev. A 55, 2387 (1997); C. C. Gerry, ibid. 55, 2478 (1997).[6] C. M. Savage, S. L. Braunstein, and D. F. Walls, Opt. Lett. 15, 628 (1990); W. Vogel and R. L. de Matos Filho, Phys. Rev. A 52, 4214 (1995); R. L. de Matos Filho and W. Vogel, ibid. 58, R1661 (1998).[7] J. Peřina, Quantum Statistics of Linear and Nonlinear Optical Phenomena (Kluwer, Dordrecht, 1991).[8] M. Hillery, M. Freyberger, and W. Schleich, Phys. Rev. A 51, 1792 (1995).[9] J. Peřina, Z. Hradil, and B. Jurčo, Quantum Optics and Fundamentals of Physics (Kluwer Academic, Dordrecht, 1994); M. Zawisky, Y. Hasegawa, H. Rauch, Z. Hradil, R. Myška, and J. Peřina, J. Phys. A 31, 551 (1998).[10] S. L. Braunstein, A. S. Lane, and C. M. Caves, Phys. Rev. Lett. 69, 2153 (1992); A. S. Lane, S. L. Braunstein, and C. M. Caves, Phys. Rev. A 47, 1667 (1993).[11] J. Jacobson, G. Björk, I. Chuang, and Y. Yamamoto, Phys. Rev. Lett. 74, 4835 (1995); J. J. Bollinger, W. M. Itano, D. J. Wineland, and D. J. Heinzen, Phys. Rev. A 54, R4649 (1996); S. F. Huelga, C. Macchiavello, T. Pellizzari, A. K. Ekert, M. B. Plenio, and J. I. Cirac, Phys. Rev. Lett. 79, 3865 (1997); V. Meyer, M. A. Rowe, D. Kielpinski, C. A. Sackett, W. M. Itano, C. Monroe, and D. J. Wineland, ibid. 86, 5870 (2001).[12] D. F. Walls and G. J. Milburn, Quantum Optics (Springer-Verlag, Berlin, 1994).[13] R. S. Longhurst, Geometrical and Physical Optics (Longmans, London, 1967).[14] N. D. Mermin, Phys. Rev. Lett. 65, 1838 (1990).[15] A. Luis and L. L. Sánchez-Soto, J. Phys. A 24, 2083 (1991); Quantum Opt. 5, 33 (1993); Phys. Rev. A 47, 1492 (1993); G. M. D’Ariano, C. Macchiavello, N. Sterpi, and H. P. Yuen,ibid. 54, 4712 (1996).[16] C. M. Caves, Phys. Rev. D 26, 1817 (1982). NO ©2002 The American Physical Society DS Docta Complutense RD 27 abr 2024