Results 61 to 70 of about 1,094,572 (279)

The measurement problem in quantum mechanics

Science & Philosophy, 2019
In this paper, we discuss the importance of measurement in quantum mechanics and the so-called measurement problem. Any quantum system can be described as a linear combination of eigenstates of an operator representing a physical quantity; this means ...
Alessio Giuseppe Ferraioli, Canio Noce
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Topologically driven no-superposing theorem with a tight error bound [PDF]

Quantum
To better understand quantum computation we can search for its limits or no-gos, especially if analogous limits do not appear in classical computation.
Zuzana Gavorová
doaj   +1 more source

Embedded Ferroelectric Nanoclusters Can Drive Polarization Reversal in a Non‐Ferroelectric Polar Film via the Proximity Effect

Advanced Functional Materials, EarlyView.
Ferroelectric nanoclusters create local internal fields in a normally non‐switchable polar film because of polarization mismatch at their interfaces. That field opposes polarization in the regions with larger polarization and reinforces polarization in the regions with smaller polarization.
Anna N. Morozovska, Eugene A. Eliseev, Sergei V. Kalinin, Long‐Qing Chen, Dean R. Evans, Venkatraman Gopalan   +5 more
wiley   +1 more source

Quantum nature of black hole and the superposition of fermionic field

European Physical Journal C: Particles and Fields
The operational framework for the superposition of spacetime is fundamentally important in developing a comprehensive description of quantum gravity (Foo et al. in Phys Rev Lett 129:181301, 2022).
Jinshan An, Li Zhang, Lulu Xiao, Jieci Wang   +3 more
doaj   +1 more source

Arbitrary coherent distributions in a programmable quantum walk

Physical Review Research, 2022
The coherent superposition of position states in a quantum walk (QW) can be precisely engineered towards the desired distributions to meet the need of quantum information applications.
Rong Zhang, Ran Yang, Jian Guo, Chang-Wei Sun, Yi-Chen Liu, Heng Zhou, Ping Xu, Zhenda Xie, Yan-Xiao Gong, Shi-Ning Zhu   +9 more
doaj   +1 more source

Donor‐Engineered Chiral Indium–Salen Complexes for Tunable Circularly Polarized Luminescence

Advanced Functional Materials, EarlyView.
Chiral indium–salen complexes bearing electronically and structurally diverse donor substituents are presented as modular main‐group luminophores exhibiting tunable blue‐to‐green circularly polarized luminescence. Donor engineering systematically controls frontier‐orbital distribution, intraligand charge transfer, and excited‐state relaxation ...
Haein Kim, Minseo Ji, Khuslen Bazarragchaa, Yubin Choi, Gahyeon Baek, Ji Hye Lee, Heekyung Park, Houng Kang, Hyonseok Hwang, Huiyeong Ju, Jun Hui Park, Youngjo Kim, Min Kim, Youngmin You, Myung Hwan Park   +14 more
wiley   +1 more source

Quantum Superposition of Media Messages: Assessing Sustenance and Collapse Trigger of Contradictory Beliefs Across Climate Change, Political Narratives, and AI Discourses in Nigeria

Informasi
This study applies quantum cognition frameworks to investigate how Nigerian media audiences sustain contradictory beliefs ("superposition") across climate change, political narratives, and AI discourses.
Samuel Sunday Ameh, Nathan Oguche Emmanuel, Precious Ojocheneyo Ugbaje, Nworie Chukwuebuka Stephen, Raphael Chijioke EZE   +4 more
doaj   +1 more source

Pentaquark and hybrid states [PDF]

EPJ Web of Conferences, 2019
We resume our results on the heavy quarkonium hybrids [19], and on the recently observed pentaquark states [16–18]. The latter have been investigated in three different scenarios: as compact pentaquark states [20], as a quantum superposition of D(*)Λc, D(
Santopinto Elena
doaj   +1 more source

Violation of a Leggett-Garg inequality with ideal non-invasive measurements [PDF]

, 2012
The quantum superposition principle states that an entity can exist in two different states simultaneously, counter to our 'classical' intuition. Is it possible to understand a given system's behaviour without such a concept?
Pohl, Hans-Joachim, Briggs, G. Andrew D., Itoh, K.M., Riemann, H., Abrosimov, Nikolai V., Becker, Peter, Itoh, Kohei M., Gauger, Erik M.; id_orcid, Benjamin, S.C., Morton, John J. L., Knee, GC, Briggs, GAD, Abrosimov, N.V., Briggs, G.A.D., Riemann, Helge, Gauger, EM, Pohl, H-J, Benjamin, SC, Pohl, H.-J., Simmons, Stephanie, Thewalt, Mike L. W., Gauger, E.M., Riemann, H, Briggs, Andrew, Abrosimov, NV, Benjamin, Simon, Morton, J.J.L., Benjamin, Simon C., Simmons, S, Knee, George C., Simmons, S., Knee, G.C., Becker, P., Becker, P, Itoh, KM, Thewalt, MLW, Morton, JJL, Thewalt, M.L.W.   +37 more
core   +1 more source