Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Vitanov, N V"'
The Born-Fock theorem is one of the most fundamental theorems of quantum mechanics and forms the basis for reliable and efficient navigation in the Hilbert space of a quantum system with a time-dependent Hamiltonian by adiabatic evolution. In the abs
Externí odkaz:
http://arxiv.org/abs/2208.10952
The treatment of time-dependent dynamics of quantum systems involving multiple states poses considerable technical challenges. One of the most efficient approaches in treating such systems is the Morris-Shore (MS) transformation which decomposes the
Externí odkaz:
http://arxiv.org/abs/2206.03783
Autor:
Duwe, M., Zarantonello, G., Pulido-Mateo, N., Mendpara, H., Krinner, L., Bautista-Salvador, A., Vitanov, N. V., Hammerer, K., Werner, R. F., Ospelkaus, C.
Microwave control of trapped ions can provide an implementation of high-fidelity two-qubit gates free from errors induced by photon scattering. Furthermore, microwave conductors may be embedded into a scalable trap structure, providing the chip-level
Externí odkaz:
http://arxiv.org/abs/2112.07714
Autor:
Zlatanov, K. N., Vitanov, N. V.
In this paper we propose a chiral resolution technique based on laser-induced continuum structure (LICS). We show that the two enantiomers can have a different ionization profile based on implemented LICS excitation. We treat a cyclic excitation betw
Externí odkaz:
http://arxiv.org/abs/2110.15413
Autor:
Zlatanov, K. N., Vitanov, N. V.
Laser-induced-continuum-structure(LICS) allows for coherent control techniques to be applied in a Raman type system with intermediate continuum state. To this end the standard LICS problem treats two bound states coupled to one or more continua state
Externí odkaz:
http://arxiv.org/abs/2101.02603
Publikováno v:
Phys. Rev. A 102, 063113 (2020)
The Morris-Shore (MS) transformation is a powerful tool for decomposition of the dynamics of multistate quantum systems to a set of two-state systems and uncoupled single states. It assumes two sets of states wherein any state in the first set can be
Externí odkaz:
http://arxiv.org/abs/2009.11191
Publikováno v:
Entropy 2020, 22(10), 1184
In contrast to classical systems, actual implementation of non-Hermitian Hamiltonian dynamics for quantum systems is a challenge because the processes of energy gain and dissipation are based on the underlying Hermitian system-environment dynamics th
Externí odkaz:
http://arxiv.org/abs/2009.10004
Publikováno v:
Phys. Rev. B 99, 214406 (2019)
A time-dependent two interacting spin-qutrit model is analysed and solved. The two interacting qutrits are subjected to a longitudinal field linearly varying over time as in the Landau-Majorana-St\"uckelberg-Zener (LMSZ) scenario. Although a transver
Externí odkaz:
http://arxiv.org/abs/1901.00322
Publikováno v:
Phys. Rev. B 99, 174416 (2019)
We analyse a system of two interacting spin-qubits subjected to a Landau-Majorana-St\"uckelberg-Zener (LMSZ) ramp. We prove that LMSZ transitions of the two spin-qubits are possible without an external transverse static field since its role is played
Externí odkaz:
http://arxiv.org/abs/1812.06506
Publikováno v:
Phys. Rev. A 98, 043414 (2018)
In recent decades there has been a rapid development of methods to experimentally control individual quantum systems. A broad range of quantum control methods has been developed for two-level systems, however the complexity of multi-level quantum sys
Externí odkaz:
http://arxiv.org/abs/1708.02634