The Entanglement Generation in 
          
            
			
              
                P
                T
              
			  
            
          
        -Symmetric Optical Quadrimer System

Kalaga, J. K.

doi:10.3390/sym11091110

Cited by 5 publications

(1 citation statement)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Due to their novelty for the observation of open-system phenomena and applications, EPs have also been acknowledged in other physical architectures [35][36][37]. However, the relationship between EPs and the emergence of non-classical and non-local features in multipartite continuous-variable (CV) quantum systems has not been fully explored [38][39][40][41][42][43].…”

Section: Introductionmentioning

confidence: 99%

Exceptional-point-assisted entanglement, squeezing, and reset in a chain of three superconducting resonators

Teixeira¹,

Vadimov²,

Mörstedt³

et al. 2023

Preprint

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Exceptional-point-assisted entanglement, squeezing, and reset in a chain of three superconducting resonators

Teixeira¹,

Vadimov²,

Mörstedt³

et al. 2023

Preprint

View full text Add to dashboard Cite

Interaction of the hydrogen molecule with the environment: stability of the system and the $${\mathscr{PT}}$$ symmetry breaking

Wrona

Jarosik

Szczȩśniak

et al. 2020

Sci Rep

View full text Add to dashboard Cite

We study the stability of the hydrogen molecule interacting with the environment according to the balanced gain and loss energy scheme. We determined the properties of the molecule taking into account all electronic interactions, where the parameters of the Hamiltonian have been computed by using the variational method. The interaction of the hydrogen molecule with the environment was modeled parametrically (γ) with the help of the non-hermitian operator. We have shown that the hydrogen molecule is dynamically unstable. The dissociation time (TD) decreases, if the γ parameter increases (for γ → 0, we get TD → +∞). At the dynamic instability of the hydrogen molecule overlaps its static instability as the coupling constant γ increases. We observed the decrease in the dissociation energy and the existence of the metastable state of the molecule (γMS = 0.659374 Ry). The hydrogen molecule is statically unstable for γ > γD = 1.024638 Ry. One can also observed the PT symmetry breaking effect for the electronic Hamiltonian (γPT = 0.520873 Ry). However, it does not affect the properties of the hydrogen molecule, such as: the electronic Hamiltonian parameters, the phonon and rotational energy, and the values of the electron-phonon coupling constants.

show abstract

Exceptional points in oligomer chains

Downing

Saroka

2021

Commun Phys

View full text Add to dashboard Cite

Symmetry underpins our understanding of physical law. Open systems, those in contact with their environment, can provide a platform to explore parity-time symmetry. While classical parity-time symmetric systems have received a lot of attention, especially because of the associated advances in the generation and control of light, there is much more to be discovered about their quantum counterparts. Here we provide a quantum theory which describes the non-Hermitian physics of chains of coupled modes, which has applications across optics and photonics. We elucidate the origin of the exceptional points which govern the parity-time symmetry, survey their signatures in quantum transport, study their influence for correlations, and account for long-range interactions. We also find how the locations of the exceptional points evolve as a function of the chain length and chain parity, capturing how an arbitrary oligomer chain transitions from its unbroken to broken symmetric phase. Our general results provide perspectives for the experimental detection of parity-time symmetric phases in one-dimensional arrays of quantum objects, with consequences for light transport and its degree of coherence.

show abstract

The Entanglement Generation in P T -Symmetric Optical Quadrimer System

Cited by 5 publications

References 43 publications

Exceptional-point-assisted entanglement, squeezing, and reset in a chain of three superconducting resonators

Exceptional-point-assisted entanglement, squeezing, and reset in a chain of three superconducting resonators

Interaction of the hydrogen molecule with the environment: stability of the system and the $${\mathscr{PT}}$$ symmetry breaking

Exceptional points in oligomer chains

Contact Info

Product

Resources

About