A Perron–Frobenius Type of Theorem for Quantum Operations
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Statistical Physics"
DOI: 10.1007/s10955-017-1862-3
Abstract: We define a special class of quantum operations we call Markovian and show that it has the same spectral properties as a corresponding Markov chain. We then consider a convex combination of a quantum operation… read more here.
Keywords: quantum; partially decoherent; quantum operations; theorem ... See more keywords
Dynamic Quantum Operations at Elevated Temperatures Using Hot-Spot Nanoheating of Color Centers
Sign Up to like & getrecommendations! Published in 2025 at "Nano Letters"
DOI: 10.1021/acs.nanolett.5c04008
Abstract: Temperature fluctuations in materials used for quantum networks can give rise to lattice vibrations that detune, dephase, and decrease the lifetimes of embedded quantum defects that function as qubits. Most experiments demonstrating quantum operations have… read more here.
Keywords: elevated temperatures; color centers; operations elevated; dynamic quantum ... See more keywords
Universal quantum operations and ancilla-based read-out for tweezer clocks
Sign Up to like & getrecommendations! Published in 2024 at "Nature"
DOI: 10.1038/s41586-024-08005-8
Abstract: Enhancing the precision of measurements by harnessing entanglement is a long-sought goal in quantum metrology1,2. Yet attaining the best sensitivity allowed by quantum theory in the presence of noise is an outstanding challenge, requiring optimal… read more here.
Keywords: operations ancilla; universal quantum; based read; clock ... See more keywords
Controlled bidirectional remote implementations of partially unknown quantum operations
Sign Up to like & getrecommendations! Published in 2024 at "Physica Scripta"
DOI: 10.1088/1402-4896/ad2d9d
Abstract: By blending the ideas of controlled teleportation, bidirectional teleportation and remote implementation of quantum operations, we investigate the bidirectional transmission of quantum operations under the control of one supervisor. Firstly, we provide a method for… read more here.
Keywords: quantum operations; state; particle entangled; controlled bidirectional ... See more keywords
Entanglement-assisted classical communication can simulate classical communication without causal order
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.062331
Abstract: Phenomena induced by the existence of entanglement, such as nonlocal correlations, exhibit characteristic properties of quantum mechanics distinguishing from classical theories. When entanglement is accompanied by classical communication, it enhances the power of quantum operations… read more here.
Keywords: communication; classical communication; quantum operations; entanglement ... See more keywords
Unambiguous discrimination of general quantum operations
Sign Up to like & getrecommendations! Published in 2024 at "Science Advances"
DOI: 10.1126/sciadv.adq2529
Abstract: The discrimination of quantum operations has long been an intriguing challenge, with theoretical research notably advancing our understanding of the quantum features in discriminating quantum objects. This challenge is closely related to the discrimination of… read more here.
Keywords: quantum operations; general quantum; discrimination general; quantum ... See more keywords
On Quantum Operations of Photon Subtraction and Photon Addition
Sign Up to like & getrecommendations! Published in 2019 at "Lobachevskii Journal of Mathematics"
DOI: 10.1134/s199508021910010x
Abstract: The conventional photon subtraction and photon addition transformations, $\varrho \rightarrow t a \varrho a^†$ and $\varrho \rightarrow t a^† \varrho a$, are not valid quantum operations for any constant $t>0$ since these transformations are not… read more here.
Keywords: photon subtraction; photon addition; quantum operations; addition ... See more keywords