Abstract
New coherent states of theq-Weyl algebraAA † −qA † A = 1,0 <q < 1, are constructed. They are defined as eigenstates of the operatorA † which is the lowering operator for nonhighest weight representations describing positive energy states. Depending on whether the positive spectrum is discrete or continuous, these coherent states are related either to the bilateral basic hypergeometric series or to some integrals over them. The free particle realization of theq-Weyl algebra whenA † A ∞ d2/dx2 is used for illustrations.
Similar content being viewed by others
References
Arik, M. and Coon, D.: Hilbert spaces of analytic functions and generalized coherent states,J. Math. Phys. 17, 524–527 (1976).
Macfarlane, A. J.: Onq-analogues of the quantum harmonic oscillator and the quantum group SU(2) q ,J. Phys. A22, 4581–4588 (1989).
Atakishiev, N. M. and Suslov, S. K.: Difference analogs of the harmonic oscillator,Theoret. Math. Phys. 85, 1055–1062 (1990).
Gelfand, I. M. and Fairlie, D. B.: The algebra of Weyl symmetrised polynomials and its quantum extension,Comm. Math. Phys. 136, 487–499 (1991).
Kulish, P. P.: Contraction of quantum algebras andq-oscillators,Theoret. Math. Phys. 86, 108–110 (1991).
Fivel, D. I.: Quasi-coherent states and the spectral resolution of theq-Bose field operator,J. Phys. A24, 3575–3585 (1991).
Floreanini, R. and Vinet, L.:q-Orthogonal polynomials and the oscillator quantum group,Lett. Math. Phys. 22, 45–54 (1991).
Zhedanov, A.: Nonlinear shift ofq-Bose operators andq-coherent states,J. Phys. A24, L1129-L11312 (1991).
Spiridonov, V.: Exactly solvable potentials and quantum algebras,Phys. Rev. Lett. 69, 398–401 (1992); in M. A. del Olmo, M. Santander, and J. M. Guilarte (eds)Proc. of XIXth ICGTMP (Salamanca, Spain, June 1992); (CIEMAT, 1992) vol. I, pp. 198-201.
Skorik, S. and Spiridonov, V.: Self-similar potentials and theq-oscillator algebra at roots of unity,Lett. Math. Phys. 28, 59–74 (1993).
Granovskii, Ya. I. and Zhedanov, A. S.: Production ofq-bosons by a classical current: an exactly solvable model,Modern Phys. Lett. A8, 1029–1035 (1993).
Spiridonov, V., Vinet, L. and Zhedanov, A.: Difference Schrödinger operators with linear and exponential discrete spectra,Lett. Math. Phys. 29, 63–73, (1993).
Biedenharn, L. C.: The quantum group SU q (2) and aq-analogue of the boson operators,J. Phys. A22, L873-L878 (1989).
Hayashi, T.:Q-analogues of Clifford and Weyl algebras - spinor and oscillator representations of quantum enveloping algebras,Comm. Math. Phys. 127, 129–144 (1990).
G. Gasper, and Rahman, M.:Basic Hypergeometric Series, Cambridge University Press, 1990.
Kato, T. and McLeod, J. B.: The functional-differential equationy'(x) =ay(λx) +by(x),Bull. Amer. Math. Soc. 77, 891–937 (1971).
Iserles, A.: On the generalized pantograph functional-differential equation,Europ. J. Appl. Math. 4, 1–38 (1993).
Spiridonov, V.: Universal superpositions of coherent states and self-similar potentials, Preprint CRM-1913, 1994.
Author information
Authors and Affiliations
Additional information
On leave of absence from the Institute for Nuclear Research, Russian Academy of Sciences, Moscow, Russia.