"27" . . "Asymptocick\u00FD zp\u016Fsob vy\u0159e\u0161itelnosti imagin\u00E1rn\u00EDho oscil\u00E1toru."@cs . "Asymptotic solvability of an imaginary cubic oscillator with spikes" . "quantum-mechanics; anharmonic-oscillators; perturbation-theory"@en . "0305-4470" . "Asymptocick\u00FD zp\u016Fsob vy\u0159e\u0161itelnosti imagin\u00E1rn\u00EDho oscil\u00E1toru"@cs . . "RIV/61389005:_____/02:00185647!RIV08-AV0-61389005" . . "Gemperle, F." . . . "[442DF4110E3B]" . "For complex potentials V(x) = -(ix)(3) -beta(2)(ix)(-2) - 2betadelta(ix)(1/2) which are PT symmetric, we show that in beta much greater than 1 strong coupling regime the low-lying bound states almost coincide with harmonic oscillators whenever the spectrum remains real (this means, at all delta . . "Asymptotic solvability of an imaginary cubic oscillator with spikes"@en . . "For complex potentials V(x) = -(ix)(3) -beta(2)(ix)(-2) - 2betadelta(ix)(1/2) which are PT symmetric, we show that in beta much greater than 1 strong coupling regime the low-lying bound states almost coincide with harmonic oscillators whenever the spectrum remains real (this means, at all delta . "Asymptotic solvability of an imaginary cubic oscillator with spikes" . "13"^^ . "35" . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . "639116" . "RIV/61389005:_____/02:00185647" . "1"^^ . "3"^^ . "Mustafa, O." . "Asymptocick\u00FD zp\u016Fsob vy\u0159e\u0161itelnosti imagin\u00E1rn\u00EDho oscil\u00E1toru"@cs . . . . "Znojil, Miloslav" . . . "5781;5793" . . "Journal of Physics. A - Mathematical and General Physics" . . . "P(GA203/00/1025), P(IAA1048004), Z(AV0Z1048901)" . "Asymptotic solvability of an imaginary cubic oscillator with spikes"@en .