Zobrazeno 1 - 10
of 417
pro vyhledávání: '"Miranowicz, Adam"'
Exceptional points (EPs) are singularities in the spectra of non-Hermitian operators, where eigenvalues and eigenvectors coalesce. Recently, open quantum systems have been increasingly explored as EP testbeds due to their natural non-Hermitian nature
Externí odkaz:
http://arxiv.org/abs/2406.18362
Publikováno v:
Opt. Express 32, 22020-22030 (2024)
We propose how to achieve chiral photon blockade by spinning a nonlinear optical resonator. We show that by driving such a device at a fixed direction, completely different quantum effects can emerge for the counter-propagating optical modes, due to
Externí odkaz:
http://arxiv.org/abs/2406.00745
The fascinating realm of non-Hermitian physics with the interplay of parity (P) and time-reversal (T) symmetry has been witnessing immense attention in exploring unconventional physics at Exceptional Point (EP) singularities. Particularly, the physic
Externí odkaz:
http://arxiv.org/abs/2405.08850
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
Non-Hermitian systems have attracted much interest in recent decades, driven partly by the existence of exotic spectral singularities, known as exceptional points (EPs), where the dimensionality of the system evolution operator is reduced. Among vari
Externí odkaz:
http://arxiv.org/abs/2402.15298
It has been a long-standing goal to improve dispersive qubit readout with squeezed light. However, injected external squeezing (IES) {\it cannot} enable a practically interesting increase in the signal-to-noise ratio (SNR), and simultaneously, the in
Externí odkaz:
http://arxiv.org/abs/2402.12044
Entanglement potentials (EPs) enable the characterization and quantification of the nonclassicality of single-mode optical fields by measuring the entanglement generated through beam splitting. We experimentally generated single-photon states and tom
Externí odkaz:
http://arxiv.org/abs/2401.15995
Hamiltonian exceptional points (HEPs) are spectral degeneracies of non-Hermitian Hamiltonians describing classical and semiclassical open systems with gain and/or loss. However, this definition overlooks the occurrence of quantum jumps in the evoluti
Externí odkaz:
http://arxiv.org/abs/2401.14993
Publikováno v:
Physics Reports 1078, 1-59 (2024)
The interaction of light and matter at the single-photon level is of central importance in various fields of physics, including, e.g., condensed matter physics, astronomy, quantum optics, and quantum information. Amplification of such quantum light-m
Externí odkaz:
http://arxiv.org/abs/2401.04949