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- European Organization for Nuclear ResearchCH377 papers
- Universität HamburgDE355 papers
- National and Kapodistrian University of AthensGR354 papers
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- University of BelgradeRS351 papers
- Rutherford Appleton LaboratoryGB350 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT346 papers
- A. Alikhanyan National LaboratoryAM344 papers
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5 papers · 2 filters
Collective Modes in the Cooperative Jahn-Teller Model: Path Integral Approach
Peter A Ivanov
We discuss analytical approximations to the ground-state phase diagram and the elementary excitations of the cooperative Jahn-Teller model describing strongly correlated spin-boson…
Complete achromatic optical switching between two waveguides with a sign flip of the phase mismatch
Wei Huang, Andon A. Rangelov, Elica Kyoseva
We present a two-waveguide coupler which, realizes complete achromatic all-optical switching. The coupling of the waveguides has a hyperbolic-secant shape while the phase mismatch…
High-fidelity error-resilient composite phase gates
Boyan T. Torosov, Nikolay V. Vitanov
We present a method to construct high-fidelity quantum phase gates, which are insensitive to errors in various experimental parameters. The phase gates consist of a pair of two seq…
Quantum simulation of superexchange magnetism in linear ion crystals
Peter A. Ivanov, Naoum I. Karchev, Nikolay V. Vitanov +1
We present a system for the simulation of Heisenberg models with spins and with a linear crystal of trapped ions. We show that the laser-ion interaction induc…
Correction of Arbitrary Errors in Population Inversion of Quantum Systems by Universal Composite Pulses
Genko T. Genov, Daniel Schraft, Thomas Halfmann +1
We introduce universal broadband composite pulse sequences for robust high-fidelity population inversion in two-state quantum systems, which compensate deviations in any experiment…