- Centre National de la Recherche ScientifiqueFR2.9k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR2.4k papers
- Institute for Theoretical and Experimental PhysicsRU2.3k papers
- Institute for High Energy PhysicsES2.2k papers
- Joint Institute for Nuclear ResearchRU2.1k papers
- Petersburg Nuclear Physics InstituteRU2k papers
- Rutherford Appleton LaboratoryGB2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT2k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.9k papers
- European Organization for Nuclear ResearchCH1.8k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.8k papers
11 papers · 2 filters
Dynamical tunneling of bound systems through a potential barrier: complex way to the top
F. Bezrukov, D. Levkov
A semiclassical method of complex trajectories for the calculation of the tunneling exponent in systems with many degrees of freedom is further developed. It is supplemented with a…
Quantum Computer with Mixed States and Four-Valued Logic
Vasily E. Tarasov
In this paper we discuss a model of quantum computer in which a state is an operator of density matrix and gates are general quantum operations, not necessarily unitary. A mixed st…
Conditioned Unitary Transformation on biphotons
G. Brida, M. Chekhova, M. Genovese +3
A conditioned unitary transformation ( polarization rotation) is performed at single-photon level. The transformation is realized by rotating polarization for one of the phot…
Statistical Reconstruction of Qutrits
Yu. I. Bogdanov, M. V. Chekhova, L. A. Krivitsky +6
We discuss a procedure of measurement followed by the reproduction of the quantum state of a three-level optical system - a frequency- and spatially degenerate two-photon field. Th…
Pure Stationary States of Open Quantum Systems
Vasily E. Tarasov
Using Liouville space and superoperator formalism we consider pure stationary states of open and dissipative quantum systems. We discuss stationary states of open quantum systems,…
Quantization of non-Hamiltonian and Dissipative Systems
Vasily E. Tarasov
A generalization of canonical quantization which maps a dynamical operator to a dynamical superoperator is suggested. Weyl quantization of dynamical operator, which cannot be repre…