caa a22 4500 469065427 CHVBK 20180323132907.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF02727043 doi (NATIONALLICENCE)springer-10.1007/BF02727043 Squeezing in systems described by quartic Hamiltonians: Normal ordering technique [Elektronische Daten] [B. Baseia, C. Bonato] Summary: Recently, Yamamotoet al. (J. Opt. Soc. Am. B,4, 1645 (1987) have employed the Heisenberg picture to investigate number-phase squeezing generated by a quartic Hamiltonian:H=χa +2 a 2. Here, to check alternative procedures, we employ the normal ordering technique to solve the Schrödinger equation for the same system. It is found that the application of this (analytical) approach, including its standard <<ansatz>>, only works when making an approximation that leads to quadrature squeezing, instead of the number-phase squeezing as (numerically) found by Yamamotoet al. Società Italiana di Fisica, 1992 Nonclassical photon states (including antibunched, squeezed, sub-Poissonian) nationallicence Classical mechanics of disrete systems: general mathematical aspects nationallicence Baseia B. Department de Física, CCEN, Universidade Federal da Paraíba, João Pessoa (PB) 58.059, 5008, Caixa Postal, Brazil aut Bonato C. Department de Física, CCEN, Universidade Federal da Paraíba, João Pessoa (PB) 58.059, 5008, Caixa Postal, Brazil aut Il Nuovo Cimento B (1971-1996) Società Italiana di Fisica 107/9(1992-09-01), 1041-1049 107:9<1041 1992 107 40764 https://doi.org/10.1007/BF02727043 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02727043 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baseia B. Department de Física, CCEN, Universidade Federal da Paraíba, João Pessoa (PB) 58.059, 5008, Caixa Postal, Brazil aut NATIONALLICENCE 700 1- Bonato C. Department de Física, CCEN, Universidade Federal da Paraíba, João Pessoa (PB) 58.059, 5008, Caixa Postal, Brazil aut NATIONALLICENCE 773 0- Il Nuovo Cimento B (1971-1996) Società Italiana di Fisica 107/9(1992-09-01), 1041-1049 107:9<1041 1992 107 40764 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer