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- Hungarian Academy of SciencesHU165 papers
- HUN-REN Wigner Research Centre for PhysicsHU84 papers
- Budapest University of Technology and EconomicsHU39 papers
- University of SzegedHU34 papers
- Eötvös Loránd UniversityHU23 papers
- Centre National de la Recherche ScientifiqueFR14 papers
- The University of TokyoJP13 papers
- École Polytechnique Fédérale de LausanneCH12 papers
- KTH Royal Institute of TechnologySE11 papers
- Universität InnsbruckAT11 papers
- Saarland UniversityDE9 papers
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6 papers · 2 filters
Regular phase operator and SU(1,1) coherent states of the harmonic oscillator
Sandor Varro
A new solution is proposed to the long-standing problem of describing the quantum phase of a harmonic oscillator. In terms of an'exponential phase operator', defined by a new 'pola…
Construction of quantum states by special superpositions of coherent states
P. Adam, E. Molnar, G. Mogyorosi +3
We consider the optimal approximation of certain quantum states of a harmonic oscillator with the superposition of a finite number of coherent states in phase space placed either o…
Quantized recurrence time in iterated open quantum dynamics
P. Sinkovicz, Z. Kurucz, T. Kiss +1
The expected return time to the original state is a key concept characterizing systems obeying both classical or quantum dynamics. We consider iterated open quantum dynamical syste…
Optimization of periodic single-photon sources
Peter Adam, Matyas Mechler, Imre Santa +1
We introduce a theoretical framework which is suitable for the description of all spatial and time-multiplexed periodic single-photon sources realized or proposed thus far. Our mod…
Damping of quasiparticles in a Bose-Einstein condensate coupled to an optical cavity
G. Konya, G. Szirmai, P. Domokos
We present a general theory for calculating the damping rate of elementary density wave excitations in a Bose-Einstein condensate strongly coupled to a single radiation field mode…
The effect of a laser dip in the semiclassical dynamics of bosonic Josephson Junctions
Gergely Szirmai, Giovanni Mazzarella, Luca Salasnich
We consider the standard double well setup extended with a laser beam in the center to create a "triple well" potential. The beam in the center is much more narrow than the barrier…