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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1896 1
1897 2
1903 4
1904 5
1906 2
1907 7
1908 5
1909 2
1913 1
1915 2
1916 1
1917 2
1918 3
1919 2
1920 3
1921 2
1922 4
1924 1
1925 1
1926 2
1928 2
1931 2
1932 1
1933 1
1936 3
1937 4
1938 2
1939 1
1940 2
1942 1
1943 1
1944 1
1945 2
1947 2
1948 1
1949 1
1951 1
1953 2
1954 4
1956 5
1957 3
1958 3
1959 3
1960 3
1961 2
1962 2
1963 7
1964 7
1965 12
1966 17
1967 7
1968 7
1969 5
1970 12
1971 8
1972 17
1973 11
1974 8
1975 58
1976 65
1977 56
1978 64
1979 78
1980 162
1981 262
1982 312
1983 375
1984 401
1985 434
1986 436
1987 402
1988 390
1989 422
1990 443
1991 448
1992 431
1993 449
1994 455
1995 483
1996 465
1997 413
1998 533
1999 524
2000 552
2001 590
2002 631
2003 667
2004 777
2005 962
2006 992
2007 1094
2008 1130
2009 1195
2010 1338
2011 1495
2012 1520
2013 1700
2014 1890
2015 2038
2016 2168
2017 2226
2018 2468
2019 2562
2020 2884
2021 2909
2022 2975
2023 2928
2024 1291

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45,847 results

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Page 1
A non-diagonalizable pure state.
Koszmider P. Koszmider P. Proc Natl Acad Sci U S A. 2020 Dec 29;117(52):33084-33089. doi: 10.1073/pnas.2011885117. Epub 2020 Dec 16. Proc Natl Acad Sci U S A. 2020. PMID: 33328276 Free PMC article.
We construct a pure state on the C*-algebra [Formula: see text] of all bounded linear operators on [Formula: see text], which is not diagonalizable [i.e., it is not of the form [Formula: see text] for any orthonormal basis [Formula: see text] of [Formula: see text] …
We construct a pure state on the C*-algebra [Formula: see text] of all bounded linear operators on [Formula: see text], which …
Quantum State Interferography.
Sahoo SN, Chakraborti S, Pati AK, Sinha U. Sahoo SN, et al. Phys Rev Lett. 2020 Sep 18;125(12):123601. doi: 10.1103/PhysRevLett.125.123601. Phys Rev Lett. 2020. PMID: 33016750
In contrast, standard QST requires at least two measurements for pure state qubit and at least three measurements for mixed state qubit reconstruction. ...An extension of the scheme to pure states involving d-1 interferograms for d-dimensional s …
In contrast, standard QST requires at least two measurements for pure state qubit and at least three measurements for mixed …
Unambiguous State Discrimination with Intrinsic Coherence.
Zhang JH, Zhang FL, Wang ZX, Yang H, Fei SM. Zhang JH, et al. Entropy (Basel). 2021 Dec 23;24(1):18. doi: 10.3390/e24010018. Entropy (Basel). 2021. PMID: 35052044 Free PMC article.
We investigate the discrimination of pure-mixed (quantum filtering) and mixed-mixed states and compare their optimal success probability with the one for discriminating other pairs of pure states superposed by the vectors included in the mixed state …
We investigate the discrimination of pure-mixed (quantum filtering) and mixed-mixed states and compare their optimal success p …
On Quantum Entropy.
Geiger D, Kedem ZM. Geiger D, et al. Entropy (Basel). 2022 Sep 23;24(10):1341. doi: 10.3390/e24101341. Entropy (Basel). 2022. PMID: 37420361 Free PMC article.
Quantum physics, despite its intrinsically probabilistic nature, lacks a definition of entropy fully accounting for the randomness of a quantum state. For example, von Neumann entropy quantifies only the incomplete specification of a quantum state and does not quant …
Quantum physics, despite its intrinsically probabilistic nature, lacks a definition of entropy fully accounting for the randomness of a quan …
A complete hierarchy for the pure state marginal problem in quantum mechanics.
Yu XD, Simnacher T, Wyderka N, Nguyen HC, Gühne O. Yu XD, et al. Nat Commun. 2021 Feb 12;12(1):1012. doi: 10.1038/s41467-020-20799-5. Nat Commun. 2021. PMID: 33579935 Free PMC article.
In quantum mechanics, this question manifests itself in the quantum marginal problem, which asks whether there is a global pure quantum state for some given marginals. This problem arises in many contexts, ranging from quantum chemistry to entanglement theory and qu …
In quantum mechanics, this question manifests itself in the quantum marginal problem, which asks whether there is a global pure quant …
Spin Entropy.
Geiger D, Kedem ZM. Geiger D, et al. Entropy (Basel). 2022 Sep 14;24(9):1292. doi: 10.3390/e24091292. Entropy (Basel). 2022. PMID: 36141178 Free PMC article.
Two types of randomness are associated with a mixed quantum state: the uncertainty in the probability coefficients of the constituent pure states and the uncertainty in the value of each observable captured by the Born's rule probabilities. ...The proposed sp …
Two types of randomness are associated with a mixed quantum state: the uncertainty in the probability coefficients of the constituent …
Generation of highly pure single-photon state at telecommunication wavelength.
Kawasaki A, Takase K, Nomura T, Miki S, Terai H, Yabuno M, China F, Asavanant W, Endo M, Yoshikawa JI, Furusawa A. Kawasaki A, et al. Opt Express. 2022 Jul 4;30(14):24831-24840. doi: 10.1364/OE.460583. Opt Express. 2022. PMID: 36237027 Free article.
Telecommunication wavelength with well-developed optical communication technologies and low losses in the waveguide are advantageous for quantum applications. However, an experimental generation of non-classical states called non-Gaussian states at the telecommunica …
Telecommunication wavelength with well-developed optical communication technologies and low losses in the waveguide are advantageous for qua …
State Entropy and Differentiation Phenomenon.
Asano M, Basieva I, Pothos EM, Khrennikov A. Asano M, et al. Entropy (Basel). 2018 May 23;20(6):394. doi: 10.3390/e20060394. Entropy (Basel). 2018. PMID: 33265484 Free PMC article.
In the formalism of quantum theory, a state of a system is represented by a density operator. Mathematically, a density operator can be decomposed into a weighted sum of (projection) operators representing an ensemble of pure states (a state distributi …
In the formalism of quantum theory, a state of a system is represented by a density operator. Mathematically, a density operator can …
Deterministic Coherence Distillation.
Liu CL, Zhou DL. Liu CL, et al. Phys Rev Lett. 2019 Aug 16;123(7):070402. doi: 10.1103/PhysRevLett.123.070402. Phys Rev Lett. 2019. PMID: 31491128
In this Letter, we complete the deterministic distillation of quantum coherence for a finite number of coherent states under strictly incoherent operations. Specifically, we find the necessary and sufficient condition for the transformation from a mixed coherent state …
In this Letter, we complete the deterministic distillation of quantum coherence for a finite number of coherent states under strictly …
Convergence of a Reconstructed Density Matrix to a Pure State Using the Maximal Entropy Approach.
Gupta R, Levine RD, Kais S. Gupta R, et al. J Phys Chem A. 2021 Sep 2;125(34):7588-7595. doi: 10.1021/acs.jpca.1c05884. Epub 2021 Aug 19. J Phys Chem A. 2021. PMID: 34410718
This approach provides the best estimate of the target state when we know the complete set of observables, which is the case of convergence of the reconstructed density matrix to a pure state. Our goal is to provide a practical inference of a quantum system i …
This approach provides the best estimate of the target state when we know the complete set of observables, which is the case of conve …
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