109 citations · 889 across the 59 of their papers we have counts for
21 papers · 1 filter
Collective decay of interacting bosons
Bennet Windt, Lorenzo Rossi, Alexander V. Poshakinskiy +2
We study a bosonic analog of the paradigmatic Dicke model of superradiance, comprising interacting bosonic modes subject to fully symmetric collective decay. Depending on the inter…
Correlated relaxation and emerging entanglement in arrays of -type atoms
Denis Ilin, Alexander V. Poshakinskiy, Alexander S. Solntsev
We present a theoretical framework for investigating the non-classical collective relaxation in arrays of Λ-type three-level atoms, where the two optical transitions coupled to a p…
Nonlinear dynamical Casimir effect and Unruh entanglement in waveguide QED with parametrically modulated coupling
Egor S. Vyatkin, Alexander V. Poshakinskiy, Alexander N. Poddubny
We study theoretically an array of two-level qubits moving relative to a one-dimensional waveguide. This motion can be implemented mechanically or simulated via the modulation of t…
Many-photon scattering and entangling in a waveguide with a Λ-type atom
Denis Ilin, Alexander V. Poshakinskiy
We develop the analytical theory that describes simultaneous transmission of several photons through a waveguide coupled to a -type atom. We show that after transmission of a sh…
Bound state of distant photons in waveguide quantum electrodynamics
Alexander V. Poshakinskiy, Alexander N. Poddubny
Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. Here we predict a novel kind of bound quantum state in the simplest one-dimens…
Long persistent anticorrelations in few-qubit arrays
Danil Kornovan, Alexander Poddubny, Alexander Poshakinskiy
We consider theoretically the mechanisms to realize antibunching between the photons scattered on the array of two-level atoms in a general electromagnetic environment. Our goal is…
Two-photon pulse scattering spectroscopy for arrays of two-level atoms, coupled to the waveguide
Ekaterina Vlasiuk, Alexander V. Poshakinskiy, Alexander N. Poddubny
We have theoretically studied the scattering of two-photon pulses from a spatially-separated array of two-level atoms coupled to the waveguide. A general analytical expression for…
Resonant Parametric Photon Generation in Waveguide-coupled Quantum Emitter Arrays
Egor S. Vyatkin, Alexander V. Poshakinskiy, Alexander N. Poddubny
We have developed a theory of parametric photon generation in the waveguides coupled to arrays of quantum emitters with temporally modulated resonance frequencies. Such generation…
Tunable directional photon scattering from a pair of superconducting qubits
Elena S. Redchenko, Alexander V. Poshakinskiy, Riya Sett +3
The ability to control the direction of scattered light in integrated devices is crucial to provide the flexibility and scalability for a wide range of on-chip applications, such a…
Frequency combs with parity-protected cross-correlations from dynamically modulated qubit arrays
Denis Ilin, Alexander V. Poshakinskiy, Alexander N. Poddubny +1
We develop a general theoretical framework to dynamically engineer quantum correlations in the frequency-comb emission from an array of superconducting qubits in a waveguide, rigor…
Inverted fine structure of a 6H-SiC qubit enabling robust spin-photon interface
I. D. Breev, Z. Shang, A. V. Poshakinskiy +11
Optically controllable solid-state spin qubits are one of the basic building blocks for applied quantum technology. Efficient extraction of emitted photons and a robust spin-photon…
Localized vibrational modes in waveguide quantum optomechanics with spontaneously broken PT symmetry
Alexander Poshakinskiy, Ivan Iorsh, Alexander Poddubny
We study theoretically two vibrating quantum emitters trapped near a one-dimensional waveguide and interacting with propagating photons. We demonstrate, that in the regime of stron…
Dimerization of many-body subradiant states in waveguide quantum electrodynamics
Alexander V. Poshakinskiy, Alexander N. Poddubny
We study theoretically subradiant states in the array of atoms coupled to photons propagating in a one-dimensional waveguide focusing on the strongly interacting many-body regime w…
Acoustically induced coherent spin trapping
A. Hernández-Mínguez, A. V. Poshakinskiy, M. Hollenbach +2
Hybrid spin-optomechanical quantum systems offer high flexibility, integrability and applicability for quantum science and technology. Particularly, on-chip surface acoustic waves…
Waveguide quantum electrodynamics: collective radiance and photon-photon correlations
Alexandra S. Sheremet, Mihail I. Petrov, Ivan V. Iorsh +2
This review describes the emerging field of waveguide quantum electrodynamics (WQED) concerned with the interaction of photons propagating in a waveguide with localized quantum emi…
Quantum chaos driven by long-range waveguide-mediated interactions
Alexander V. Poshakinskiy, Janet Zhong, Alexander N. Poddubny
We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide. Our calculation reveals two-polariton eigenst…
Quantum Hall phase emerging in an array of atoms interacting with photons
Alexander V. Poshakinskiy, Janet Zhong, Yongguan Ke +4
Topological quantum phases underpin many concepts of modern physics. While the existence of disorder-immune topological edge states of electrons usually requires magnetic fields, d…
Radiative topological biphoton states in modulated qubit arrays
Yongguan Ke, Janet Zhong, Alexander V. Poshakinskiy +3
We study topological properties of bound pairs of photons in spatially-modulated qubit arrays (arrays of two-level atoms) coupled to a waveguide. While bound pairs behave like Bloc…
Photon-mediated localization in two-level qubit arrays
Janet Zhong, Nikita A. Olekhno, Yongguan Ke +4
We predict the existence of a novel interaction-induced spatial localization in a periodic array of qubits coupled to a waveguide. This localization can be described as a quantum a…
Inelastic scattering of photon pairs in qubit arrays with subradiant states
Yongguan Ke, Alexander V. Poshakinskiy, Chaohong Lee +2
We develop a rigorous theoretical approach for analyzing inelastic scattering of photon pairs in arrays of two-level qubits embedded in a waveguide. Our analysis reveals strong enh…
Excitation and coherent control of spin qudit modes with sub-MHz spectral resolution
V. A. Soltamov, C. Kasper, A. V. Poshakinskiy +7
Quantum bit or qubit is a two-level system, which builds the foundation for quantum computation, simulation, communication and sensing. Quantum states of higher dimension, i.e., qu…