Microcavity exciton polaritons at room temperature

S Ghosh, R Su, J Zhao, A Fieramosca, J Wu… - Photonics …, 2022 - spiedigitallibrary.org
The quest for realizing novel fundamental physical effects and practical applications in
ambient conditions has led to tremendous interest in microcavity exciton polaritons working …

Escaping from the barren plateau via gaussian initializations in deep variational quantum circuits

K Zhang, L Liu, MH Hsieh… - Advances in Neural …, 2022 - proceedings.neurips.cc
Variational quantum circuits have been widely employed in quantum simulation and
quantum machine learning in recent years. However, quantum circuits with random …

Quantum coherence of the Heisenberg spin models with Dzyaloshinsky-Moriya interactions

C Radhakrishnan, M Parthasarathy, S Jambulingam… - Scientific Reports, 2017 - nature.com
We study quantum coherence in a spin chain with both symmetric exchange and
antisymmetric Dzyaloshinsky-Moriya couplings. Quantum coherence is quantified using the …

Quantum structure of the motion groups of the two-dimensional Cayley-Klein geometries

A Ballesteros, FJ Herranz, MA Del Olmo… - Journal of Physics A …, 1993 - iopscience.iop.org
A simultaneous and global scheme of quantum deformation is defined for the set of algebras
corresponding to the groups of motions of the two-dimensional Cayley-Klein geometries …

Quantum (2+ 1) kinematical algebras: a global approach

A Ballesteros, FJ Herranz, MA Del Olmo… - Journal of Physics A …, 1994 - iopscience.iop.org
In this paper we give an approach to quantum deformations of the (2+ 1) kinematical Lie
algebras within a scheme that simultaneously describes all groups of motions of classical …

Optimal parameter configurations for sequential optimization of the variational quantum eigensolver

K Endo, Y Sato, R Raymond, K Wada, N Yamamoto… - Physical Review …, 2023 - APS
The variational quantum eigensolver (VQE) is a hybrid algorithm to find the minimum
eigenvalue/vector of the given Hamiltonian by optimizing a parameterized quantum circuit …

Ground state preparation with shallow variational warm-start

Y Wang, C Zhu, M Jing, X Wang - arXiv preprint arXiv:2303.11204, 2023 - arxiv.org
Preparing the ground states of a many-body system is essential for evaluating physical
quantities and determining the properties of materials. This work provides a quantum ground …

Quantum (1+ 1) extended Galilei algebras: from Lie bialgebras to quantum R-matrices and integrable systems

A Ballesteros, E Celeghini… - Journal of Physics A …, 2000 - iopscience.iop.org
The Lie bialgebras of the (1+ 1) extended Galilei algebra are obtained and classified into
four multiparametric families. Their quantum deformations are obtained, together with the …

Attraction domain analysis for steady states of Markovian open quantum systems

S Zhang, G Zhang - Automatica, 2023 - Elsevier
This article concerns the attraction domain analysis for steady states in Markovian open
quantum systems, which are mathematically described by Lindblad master equations. The …

Exponential mapping for non-semisimple quantum groups

F Bonechi, E Celeghini, R Giachetti… - Journal of Physics A …, 1994 - iopscience.iop.org
The concept of a universal T matrix, introduced by Fronsdal and Galindo (1993) in the
framework of quantum groups, is discussed here as a generalization of the exponential …