Results 61 to 70 of about 25,951 (191)

Quantum Superposition of Massive Objects and the Quantization of Gravity

open access: yes, 2023
When a massive quantum body is put into a spatial superposition, it is of interest to consider the quantum aspects of the gravitational field sourced by the body.
Belenchia, Alessio
core  

Generation of quantum entanglement in superposed diamond spacetime

open access: yesEuropean Physical Journal C: Particles and Fields
A comprehensive study integrating the microscopic structure of spacetime and the principle of quantum superposition is capable of offering a fundamental bottom-up approach for understanding the quantum aspect of gravity.
Xiaofang Liu, Changjing Zeng, Jieci Wang
doaj   +1 more source

Bounds for coherence of quantum superpositions in high dimension

open access: yesScientific Reports, 2017
Quantum coherence plays a major role in the promotion for quantum information processing and designing quantum technology. Since coherence is rooted in superposition principle, it is vital to understand the coherence change with respect to superpositions.
Qiu-Ling Yue   +3 more
doaj   +1 more source

Schrödinger cat states in quantum-dot-cavity systems

open access: yesPhysical Review Research, 2021
A Schrödinger-cat state is a coherent superposition of macroscopically distinguishable quantum states, in quantum optics usually realized as superposition of coherent states. Protocols to prepare photonic cats have been presented for atomic systems. Here
M. Cosacchi   +6 more
doaj   +1 more source

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

open access: yes, 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   +37 more
core   +1 more source

Generation of mechanical interference fringes by multi-photon counting

open access: yesNew Journal of Physics, 2018
Exploring the quantum behaviour of macroscopic objects provides an intriguing avenue to study the foundations of physics and to develop a suite of quantum-enhanced technologies.
M Ringbauer   +4 more
doaj   +1 more source

Quantum Attacks without Superposition Queries: the Offline Simon's Algorithm

open access: yes, 2019
International audienceIn symmetric cryptanalysis, the model of superposition queries has led to surprising results, with many constructions being broken in polynomial time thanks to Simon's period-finding algorithm.
Yu Sasaki   +9 more
core   +1 more source

Quantum Walks under Superposition of Causal Order

open access: yes
Publisher Copyright: © The Author(s) 2025.We set the criteria under which superposition of causal order can be incorporated into quantum walks.
Chawla, Prateek   +2 more
core   +1 more source

Intro to Quantum Harmony: Chords in Superposition [PDF]

open access: yes
Correlations between quantum theory and music theory - specifically between principles of quantum computing and musical harmony - can lead to new understandings and new methodologies for music theorists and composers.
Hamido, Omar Costa, Dobrian, Christopher
core   +1 more source

Quantum Information in Geometric Quantum Mechanics

open access: yes, 2011
A fundamental starting point in quantum information theory is the consideration of the von Neumann entropy and its generalization to relative quantum entropies.
Volkert, Georg Friedrich
core  

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