Results 41 to 50 of about 3,692,422 (305)

Toward incompatible quantum limits on multiparameter estimation

open access: yesNature Communications, 2023
In quantum multiparameter estimation, achieving the best precision for each parameter is hindered by the Heisenberg principle. Here, the authors demonstrate how to mitigate this problem by using appropriate probe states.
Binke Xia   +4 more
doaj   +1 more source

Discrete-Time Quantum Walk on Multilayer Networks

open access: yes, 2023
A Multilayer network is a potent platform that paves the way for the study of the interactions among entities in various networks with multiple types of relationships.
Priodyuti Pradhan   +3 more
core   +1 more source

Sesquilinear quantum stochastic analysis in Banach space [PDF]

open access: yes, 2014
A theory of quantum stochastic processes in Banach space is initiated. The processes considered here consist of Banach space valued sesquilinear maps.
Lindsay, Martin   +2 more
core   +4 more sources

Temporal fusion of entangled resource states from a quantum emitter

open access: yesNature Communications
Fusion-based photonic quantum computing architectures rely on two primitives: i) near-deterministic generation and control of constant-size entangled states and ii) probabilistic entangling measurements (photonic fusion gates) between entangled states ...
Yijian Meng   +13 more
doaj   +1 more source

Multipartite entanglement of billions of motional atoms heralded by single photon

open access: yesnpj Quantum Information, 2021
Quantum theory does not prevent entanglement from being created and observed in macroscopic physical systems, in reality however, the accessible scale of entanglement is still very limited due to decoherence effects.
Hang Li   +8 more
doaj   +1 more source

Quantum Federated Learning with Quantum Networks

open access: yesICASSP 2024 - 2024 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
A major concern of deep learning models is the large amount of data that is required to build and train them, much of which is reliant on sensitive and personally identifiable information that is vulnerable to access by third parties. Ideas of using the quantum internet to address this issue have been previously proposed, which would enable fast and ...
Tyler Wang, Huan-Hsin Tseng, Shinjae Yoo
openaire   +3 more sources

Quantum Network Coding [PDF]

open access: yes, 2007
Since quantum information is continuous, its handling is sometimes surprisingly harder than the classical counterpart. A typical example is cloning; making a copy of digital information is straightforward but it is not possible exactly for quantum information. The question in this paper is whether or not quantum network coding is possible.
Masahito Hayashi   +4 more
openaire   +6 more sources

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Deterministic photon source of genuine three-qubit entanglement

open access: yesNature Communications
Deterministic photon sources allow long-term advancements in quantum optics. A single quantum emitter embedded in a photonic resonator or waveguide may be triggered to emit one photon at a time into a desired optical mode.
Yijian Meng   +12 more
doaj   +1 more source

Weak signal extraction in non-stationary channel with weak measurement

open access: yesCommunications Physics, 2023
An emerging challenge of integrated communication and sensing is the extraction of weak sensing signals transmitted through an unknown non-stationary channel. In this work, we propose a weak signal extraction method with weak measurement.
Qi Song   +7 more
doaj   +1 more source

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