Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Peřina jr., Jan"'
Publikováno v:
Optics Letters 49, 4521 (2024)
Multiple photon addition and subtraction applied to multi-mode thermal and sub-Poissonian fields as well as twin beams is mutually compared using one experimental setup. Twin beams with tight spatial correlations detected by an intensified CCD camera
Externí odkaz:
http://arxiv.org/abs/2407.09269
Autor:
Machulka, Radek, Peřina Jr., Jan, Michálek, Václav, León-Montiel, Roberto de J., Haderka, Ondřej
The identification of nonclassical features of multiphoton quantum states represents a task of the utmost importance in the development of many quantum photonic technologies. Under realistic experimental conditions, a photonic quantum state gets affe
Externí odkaz:
http://arxiv.org/abs/2405.09174
Autor:
Peřina Jr., Jan, Thapliyal, Kishore, Chimczak, Grzegorz, Kowalewska-Kudłaszyk, Anna, Miranowicz, Adam
We analyze the existence and degeneracies of quantum exceptional, diabolical, and hybrid points of simple bosonic systems, composed of up to six modes with damping and/or amplification and exhibiting nonconventional dynamics. They involve the configu
Externí odkaz:
http://arxiv.org/abs/2405.01667
Autor:
Thapliyal, Kishore, Peřina Jr., Jan, Chimczak, Grzegorz, Kowalewska-Kudłaszyk, Anna, Miranowicz, Adam
The existence and degeneracies of quantum exceptional, diabolical, and hybrid (i.e., diabolically degenerated exceptional) singularities of simple bosonic systems composed of up to five modes with damping and/or amplification are analyzed. Their dyna
Externí odkaz:
http://arxiv.org/abs/2405.01666
Autor:
Chimczak, Grzegorz, Kowalewska-Kudłaszyk, Anna, Lange, Ewelina, Bartkiewicz, Karol, Peřina Jr, Jan
Publikováno v:
Scientific Reports volume 13, Article number: 5859 (2023)
We analyse two quantum systems with hidden parity-time (PT) symmetry: one is an optical device, whereas another is a superconducting microwave-frequency device. To investigate their symmetry, we introduce an equilibrium frame, in which loss and gain
Externí odkaz:
http://arxiv.org/abs/2305.08150
Publikováno v:
Phys. Rev. A 108, 033512 (2023)
We show that the loss of nonclassicality (including quantum entanglement) cannot be compensated by the (incoherent) amplification of PT-symmetric systems. We address this problem by manipulating the quantum fluctuating forces in the Heisenberg-Langev
Externí odkaz:
http://arxiv.org/abs/2302.04235
Publikováno v:
Phys. Rev. Lett. 130, 043603 (2023)
Identification, and subsequent quantification of quantum correlations, is critical for understanding, controlling, and engineering quantum devices and processes. We derive and implement a general method to quantify various forms of quantum correlatio
Externí odkaz:
http://arxiv.org/abs/2209.05422
Autor:
Abo, Shilan, Chimczak, Grzegorz, Kowalewska-Kudlaszyk, Anna, Perina Jr., Jan, Chhajlany, Ravindra, Miranowicz, Adam
Publikováno v:
Scientific Reports 12, 17655 (2022)
We describe a novel type of blockade in a hybrid mode generated by linear coupling of photonic and phononic modes. We refer to this effect as hybrid photon-phonon blockade and show how it can be generated and detected in a driven nonlinear optomechan
Externí odkaz:
http://arxiv.org/abs/2207.09388
Publikováno v:
Quantum 6, 883 (2022)
Equivalent approaches to determine eigenfrequencies of the Liouvillians of open quantum systems are discussed using the solution of the Heisenberg-Langevin equations and the corresponding equations for operator moments. A simple damped two-level atom
Externí odkaz:
http://arxiv.org/abs/2206.14745
Publikováno v:
Phys. Rev. A 105, 013706 (2022)
Non-classicality criteria for general N-dimensional optical fields are derived. They involve intensity moments, the probabilities of photon-number distributions or combinations of both. The Hillery criteria for the sums of the probabilities of even o
Externí odkaz:
http://arxiv.org/abs/2201.02116