Robustness of Entanglement for Dicke-W and Greenberger-Horne-Zeilinger Mixed States [PDF]
EntropyQuantum entanglement is a fundamental characteristic of quantum mechanics, and understanding the robustness of entanglement across different mixed states is crucial for comprehending the entanglement properties of general quantum states.
Ling-Hui Zhu +4 more
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Symmetrized persistency of Bell correlations for Dicke states and GHZ-based mixtures [PDF]
Scientific Reports, 2021 Quantum correlations, in particular those, which enable to violate a Bell inequality, open a way to advantage in certain communication tasks. However, the main difficulty in harnessing quantumness is its fragility to, e.g, noise or loss of particles.
Marcin Wieśniak
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Different Effects of Induced Plant Defense on Population Densities of Specialist and Generalist Insects: An Explanation by Mathematical Modeling. [PDF]
Ecol EvolInduced defense chemicals in plants determine the community structure of different insect (herbivore) groups. In particular, specialists are endemic and generalists are non‐endemic in the wild because of the ecological roles of induced secondary metabolites.
Chakraborty S, Schuster S.
europepmc +2 more sources
Multiclass portfolio optimization via variational quantum Eigensolver with Dicke state ansatz [PDF]
Scientific ReportsCombinatorial optimization is a fundamental challenge in various domains, with portfolio optimization standing out as a key application in finance.
J. V. S. Scursulim +3 more
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Paramagnets as a platform for Dicke physics [PDF]
Nature CommunicationsThe interaction of an ensemble of two-level atoms and a quantized electromagnetic field, described by the Dicke Hamiltonian, is an extensively studied problem in quantum optics. However, experimental efforts to explore similar physics in condensed matter
T. Elijah Kritzell +13 more
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Qudit W and Greenberger–Horne–Zeilinger states on a two-photon chip [PDF]
Light: Science & ApplicationsHigh-dimensional quantum entangled states exhibit unique properties. While generalizations like qudit Bell, Greenberger–Horne–Zeilinger (GHZ), and Cluster states have been studied, the qudit W states remain underexplored. We discover that a superposition
Yulin Chi +4 more
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Bound polariton states in the Dicke–Ising model [PDF]
NanophotonicsWe present a study of hybrid light–matter excitations in cavity QED materials using the Dicke–Ising model as a theoretical framework. Leveraging linear response theory, we derive the exact excitations of the system in the thermodynamic limit. Our results
Román-Roche Juan +3 more
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Beating the classical precision limit with spin-1 Dicke states of more than 10,000 atoms [PDF]
Proceedings of the National Academy of Sciences of the United States of America, 2018 Xin-Yu Luo, Li You, Meng Khoon Tey
exaly +2 more sources
Wigner negativity in spin-j systems
Physical Review Research, 2021 The nonclassicality of simple spin systems as measured by Wigner negativity is studied on a spherical phase space. Several SU(2)-covariant states with common qubit representations are analyzed: spin coherent states, spin cat (Greenberger-Horne-Zeilinger ...
Jack Davis +3 more
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Entanglement in the Dicke subspace [PDF]
QuantumWe provide a complete mathematical theory for the entanglement of mixtures of Dicke states. These quantum states form an important subclass of bosonic states arising in the study of indistinguishable particles. We introduce a tensor-based parametrization
Aabhas Gulati +2 more
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