@article{52700, abstract = {{We explore the polarization hysteretic behaviour and field-dependent permittivity of ferroelectric-dielectric 2D materials formed by random dispersions of low permittivity inclusions in a ferroelectric matrix, using finite element simulations. We show how the degree of impenetrability of dielectric inclusions plays a substantial role in controlling the coercive field, remnant and saturation polarizations of the homogenized materials. The results highlight the significance of the degree of impenetrability of inclusion in tuning the effective polarization properties of such ferroelectric composites: coercive field drops significantly as percolation threshold is attained and remnant polarization decreases faster than a linear decay.}}, author = {{Myroshnychenko, Viktor and Mulavarickal Jose, Pious Mathews and Farheen, Henna and Ejaz, Shafaq and Brosseau, Christian and Förstner, Jens}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, keywords = {{tet_topic_ferro}}, number = {{4}}, pages = {{045952}}, publisher = {{IOP Publishing}}, title = {{{From Swiss-cheese to discrete ferroelectric composites: assessing the ferroelectric butterfly shape in polarization loops}}}, doi = {{10.1088/1402-4896/ad3172}}, volume = {{99}}, year = {{2024}}, } @article{42648, abstract = {{In real photonic quantum systems losses are an unavoidable factor limiting the scalability to many modes and particles, restraining their application in fields as quantum information and communication. For this reason, a considerable amount of engineering effort has been taken in order to improve the quality of particle sources and system components. At the same time, data analysis and collection methods based on post-selection have been used to mitigate the effect of particle losses. This has allowed for investigating experimentally multi-particle evolutions where the observer lacks knowledge about the system's intermediate propagation states. Nonetheless, the fundamental question how losses affect the behaviour of the surviving subset of a multi-particle system has not been investigated so far. For this reason, here we study the impact of particle losses in a quantum walk of two photons reconstructing the output probability distributions for one photon conditioned on the loss of the other in a known mode and temporal step of our evolution network. We present the underlying theoretical scheme that we have devised in order to model controlled particle losses, we describe an experimental platform capable of implementing our theory in a time multiplexing encoding. In the end we show how localized particle losses change the output distributions without altering their asymptotic spreading properties. Finally we devise a quantum civilization problem, a two walker generalisation of single particle recurrence processes.}}, author = {{Pegoraro, Federico and Held, Philip and Barkhofen, Sonja and Brecht, Benjamin and Silberhorn, Christine}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, number = {{3}}, publisher = {{IOP Publishing}}, title = {{{Dynamic conditioning of two particle discrete-time quantum walks}}}, doi = {{10.1088/1402-4896/acbcaa}}, volume = {{98}}, year = {{2023}}, } @article{26292, author = {{Sperling, Jan and Walmsley, I A}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, title = {{{Classical evolution in quantum systems}}}, doi = {{10.1088/1402-4896/ab833b}}, year = {{2020}}, } @article{26293, author = {{Sperling, Jan and Vogel, W}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, title = {{{Quasiprobability distributions for quantum-optical coherence and beyond}}}, doi = {{10.1088/1402-4896/ab5501}}, year = {{2019}}, } @article{13364, author = {{Kwong, N H and Tsang, C Y and Luk, Samuel M H and Tse, Y C and Chan, Chris K P and Lewandowski, P and Leung, P T and Schumacher, Stefan and Binder, R}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, title = {{{Optical switching of polariton density patterns in a semiconductor microcavity}}}, doi = {{10.1088/1402-4896/aa58f6}}, year = {{2017}}, } @article{41047, author = {{Kalinko, Aleksandr and Bauer, Matthias and Timoshenko, Janis and Kuzmin, Alexei}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, keywords = {{Condensed Matter Physics, Mathematical Physics, Atomic and Molecular Physics, and Optics}}, number = {{11}}, publisher = {{IOP Publishing}}, title = {{{Molecular dynamics and reverse Monte Carlo modeling of scheelite-type AWO4(A = Ca, Sr, Ba) WL3-edge EXAFS spectra}}}, doi = {{10.1088/0031-8949/91/11/114001}}, volume = {{91}}, year = {{2016}}, } @article{26334, author = {{Sperling, Jan and Vogel, W}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, title = {{{Convex ordering and quantification of quantumness}}}, doi = {{10.1088/0031-8949/90/7/074024}}, year = {{2015}}, } @article{26358, author = {{Sperling, Jan and Vogel, W}}, issn = {{0031-8949}}, journal = {{Physica Scripta}}, title = {{{The Schmidt number as a universal entanglement measure}}}, doi = {{10.1088/0031-8949/83/04/045002}}, year = {{2011}}, }