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Related papers: Non-Markovian effects in waveguide-mediated entang…

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We show that nonradiative interactions between atomic dipoles placed in a waveguide can give rise to deterministic entanglement at ranges much larger than their resonant wavelength. The range increases as the dipole-resonance approaches the…

Quantum Physics · Physics 2015-06-05 Ephraim Shahmoon , Gershon Kurizki

We utilize a superconducting qubit processor to experimentally probe non-Markovian dynamics of an entangled qubit pair. We prepare an entangled state between two qubits and monitor the evolution of entanglement over time as one of the…

We investigate qubit-qubit entanglement mediated by plasmons supported by one-dimensional waveguides. We explore both the situation of spontaneous formation of entanglement from an unentangled state and the emergence of driven steady-state…

Mesoscale and Nanoscale Physics · Physics 2011-01-18 A. Gonzalez-Tudela , D. Martin-Cano , E. Moreno , L. Martin-Moreno , C. Tejedor , F. J. Garcia-Vidal

We study the generation of quantum entanglement between two giant atoms coupled to a common one-dimensional waveguide. Here each giant atom interacts with the waveguide at two separate coupling points. Within the Wigner-Weisskopf framework…

Quantum Physics · Physics 2023-06-12 Xian-Li Yin , Jie-Qiao Liao

We consider two qubits interacting with a common bosonic bath, but not directly between themselves. We derive the (bipartite) entanglement generation conditions for Gaussian non-Markovian dynamical maps and show that they are similar as in…

Quantum Physics · Physics 2019-01-11 Fabio Benatti , Luca Ferialdi , Stefano Marcantoni

We study the non-equilibrium dynamics of a pair of qubits made of two-level atoms separated in space with distance r and interacting with one common electromagnetic field but not directly with each other. Our calculation makes a weak…

Quantum Physics · Physics 2007-05-23 C. Anastopoulos , S. Shresta , B. L. Hu

We study the disentanglement dynamics of two giant atoms coupled to a common one-dimensional waveguide. We focus on the non-Markovian retarded effect in the disentanglement of the two giant atoms by taking the photon transmission time into…

Quantum Physics · Physics 2022-12-09 Xian-Li Yin , Wen-Bin Luo , Jie-Qiao Liao

We study the non-equilibrium dynamics of a pair of qubits made of two-level atoms separated in space with distance $r$ and interacting with one common electromagnetic field but not directly with each other. Our calculation makes a weak…

Quantum Physics · Physics 2010-03-11 C. Anastopoulos , S. Shresta , B. L. Hu

We analyze the dynamics of a set of two-level atoms coupled to the electromagnetic environment within a waveguide. This problem is often tackled by assuming a weak coupling between the atoms and the environment as well as the associated…

Quantum Physics · Physics 2019-01-30 Carlo Cascio , Jad C. Halimeh , Ian P. McCulloch , Alessio Recati , Ines de Vega

We study photon-photon correlations and entanglement generation in a one-dimensional waveguide coupled to two qubits with an arbitrary spatial separation. We develop a novel Green function method to study vacuum-mediated qubit-qubit…

Quantum Physics · Physics 2013-03-14 Huaixiu Zheng , Harold U. Baranger

We study the possibility of using guided photons to generate, control, and measure the entanglement of two qubits that is mediated by a one-dimensional waveguide. We show how entanglement can be generated both with single photon and with…

Quantum Physics · Physics 2014-05-01 C. Gonzalez-Ballestero , Esteban Moreno , F. J. Garcia-Vidal

The entanglement evolution of two qubits under local, single- and two- sided noisy channels is investigated. It is found that for all pure initial states, the entanglement under a one-sided noisy channel is completely determined by the…

Quantum Physics · Physics 2015-05-20 Jun-Gang Li , Jian Zou , Bin Shao

We consider the problem of modeling a single qubit in contact with a one-dimensional waveguide beyond the standard perturbative and Markovian approximations. Using the recently developed input-output hierarchical equations of motion…

Quantum Physics · Physics 2026-05-21 Neill Lambert , Yi-Te Huang , Yueh-Nan Chen , Paul Menczel , Franco Nori

Two noninteracting atoms, initially entangled in Bell states, are coupled to a one-mode cavity. Based on the reduced non-perturbative quantum master equation, the entanglement evolution of the two atoms with decay is investigated beyond…

Quantum Physics · Physics 2009-11-13 Qing Yang , Ming Yang , Da-Chuang Li , Zhuo-Liang Cao

We investigated the disentanglement dynamics of two-qubit system in Non-Markovian approach. We showed that only the couple strength with the environment near to or less than fine-structure constant 1/137, entanglement appear exponential…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Xiufeng Cao , Hang Zheng

Entanglement between two qubits (two level atoms) mediated by surface plasmons in three-dimensional plasmonic waveguides is studied using a quantum master equation formalism. Two types of waveguides, a nanowire and a V-shaped channel cut in…

Quantum Physics · Physics 2015-09-04 S. Ali Hassani Gangaraj , Andrei Nemilentsau , George W. Hanson , Stephen Hughes

The interaction of qubits with quantized modes of electromagnetic fields has been largely addressed in the quantum optics literature under the rotating wave approximation (RWA), where rapid oscillating terms in the qubit-mode interaction…

Quantum Physics · Physics 2017-06-06 P. C. Cárdenas , W. S. Teixeira , F. L. Semião

We develop a formalism for modelling exact time dynamics in waveguide quantum electrodynamics (QED) using the real-space approach. The formalism does not assume any specific configuration of emitters and allows the study of Markovian…

Quantum Physics · Physics 2019-12-11 Fatih Dinc , İlke Ercan , Agata M. Brańczyk

We characterise non-selective global projective measurements capable of increasing quantum entanglement between two particles. We show that non-selective global projective measurements are capable of increasing entanglement between two…

We study the evolution of the entanglement of noninteracting qubits coupled to reservoirs under monitoring of the reservoirs by means of continuous measurements. We calculate the average of the concurrence of the qubits wavefunction over…

Quantum Physics · Physics 2013-05-29 Sylvain Vogelsberger , Dominique Spehner
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