Quantum optics and quantum informatics

Leader:

OSA, APS fellow, professor emeritus

Quantum Optics

Application of quantum trajectory methods to the description of quantum optical systems
Coherent control in atomic systems
Coherent control and manipulation of quantum systems with phase-modulated laser pulses
Slow light with frequency-modulated laser pulses: Applications to quantum information and resonant nonlinear optics
Collective optical excitations of ultracold atomic gases
Study of the interaction between light and bound-state ions
Propagation of electromagnetic fields in photonic crystal-optical fibers
Analog Hawking radiation in moving Bose-Einstein condensates
Properties of quantum random walks, their role in quantum information systems and quantum optical implementations
Multiphoton scattering of electrons
Dependence on the absolute phase of interactions with few-cycle femtosecond pulses
Gauge-invariant Wigner functions of charged particles
S-wave Wigner functions in arbitrary higher dimensions

Quantum Informatics

Behavior of entanglement in various physical systems and processes, like, e.g, quantum optical setups and solid-state systems
Realization of quantum computers. Problems related to specific platforms, such as, e.g., atomic, ionic and optical implementations
Foundations of quantum mechanics in view of information theory: measurement theory, nonlocality, Bell inequalities, interpretations
Strongly correlated systems in two dimensions
Fractional quantum Hall effect
Employing decohering quantum systems in quantum information protocols
Practical applications of nonclassical light
Investigation of error-free capacities of quantum channels

Laser physics, nonlinear optics and spectroscopy

Vezető:

OSA fellow, full professor, Research Group Leader

"Time-resolved" spectroscopic investigation of molecular interactions on the fs-ns scale
Development and application of integrating spheres on studying low cross-section transitions
Investigation of LiTaO3 crystals having high optical damage threshold
Development and critical investigation of the theories of Z-scan measurement
Generation of high intensity ultrashort THz pulses by optical rectification
Investigation of transient dynamics induced by THz pulses
THz pump-probe measurements
Investigation of the physical properties of graphene
Investigation of nonlinear photonic crystals
High resolution spectroscopy of rare earth element doped optical crystals
Development of optical and opto-electronic devices based on periodically poled LiNbO3 crystals
Development of ultrashort pulse OPOs and OPAs
Simulations of the interaction of high intensity electromagnetic fields with charged particles by PIC methods
The role of hydroxide ion sin nonlinear optical crystals
Thermal fixing of hologram sin photorefractive crystals
ESR investigation of transition metals in LiNbO₃
Experimental and theoretical investigation of capillary z-pinch soft-X-ray lasers
Experimental and theoretical investigation of capillary z-pinch optical waveguides
Nonlinear optics with soft-X-ray lasers
Measurement of aerosols with lasers: determination of particle site and concentration
Investigation of biological effects of aerosols
Energy transfer and fluorescence quenching in guest-host complexes of cavitands
Surface characterization by interferometric methods
Modelling and development of particle counters
Laser based methods in the determination of atmospheric parameters

Physics of many-particle systems

Vezető:

associate professor and head of department

The Heisenberg model as quantum field theory
Properties of mesons and baryons in nuclear medium
Spectroscopy of exotic hadrons
Topological excitations in QCD
Experimental investigation of low-pressue gas discharges
Development of modelling methods for low-pressue gas discharges
Particle-based simulation of electronkinetics
Simulation of strongly correlated many-particle systems of plasma physics
Development and microscopy of new multicomponent nanocomposites
Development of energy density functionals for many-electron systems
Theoretical studies of macromolecules in the framework of density functional theory
Development of density functional theory for excited states
Electron microscopy of wide bandgap semiconductors, SiC and GaN
Fusion rules and the pentagon equation