Results 121 to 130 of about 4,734,561 (380)
Quantum-coherent mixtures of causal relations
Nature Communications, 2017 The set of causal relations that can connect two systems is much richer in the quantum world. Here the authors show that it is possible to have a coherent mixture of a cause-effect and a common-cause mechanism between two systems, realizing this in a ...
Jean-Philippe W. MacLean +3 more
doaj +1 more source
Quantum Computation as Geometry [PDF]
Science, 2006 Quantum computers hold great promise for solving interesting computational problems, but it remains a challenge to find efficient quantum circuits that can perform these complicated tasks. Here we show that finding optimal quantum circuits is essentially equivalent to finding the shortest path between two points in a certain curved geometry.
Nielsen, Michael A. +3 more
openaire +5 more sources
Advanced Functional Materials, EarlyView.The study presents a general cyanine‐based platform CySN for designing robust dual‐channel near‐infrared fluorescent (NIRF) and photoacoustic (PA) probes with high ratiometric signals change. CySN enables the construction of highly sensitive and selective dual‐channel NIRF/PA probes for both small molecule and enzyme biomarkers (H2O2, esterase ...
Pingzhou Wu +14 more
wiley +1 more source
Unconventional Quantum Computing Devices [PDF]
in `Unconventional Models of Computation,' C.S. Calude, J. Casti,
M.J. Dinneen, eds., Springer, Singapore, 1998, 2000 This paper investigates a variety of unconventional quantum computation devices, including fermionic quantum computers and computers that exploit nonlinear quantum mechanics. It is shown that unconventional quantum computing devices can in principle compute some quantities more rapidly than `conventional' quantum computers.
arxiv
Imbalanced Surface Charge Induced Phase Segregation in Mixed Halide Perovskites
Advanced Functional Materials, EarlyView.The key factor determining the phase segregation in mixed halide perovskites (MHP) is the intrinsic imbalanced surface charges in the crystal lattice. MHP films with excellent crystallinity and surface morphology can suffer severe phase segregation.
Zixin Zeng +7 more
wiley +1 more source
Geometrical perspective on quantum states and quantum computation [PDF]
arXiv, 2013 We interpret quantum computing as a geometric evolution process by reformulating finite quantum systems via Connes' noncommutative geometry. In this formulation, quantum states are represented as noncommutative connections, while gauge transformations on the connections play a role of unitary quantum operations. Thereby, a geometrical model for quantum
arxiv
Advanced Functional Materials, EarlyView.PBTTT‐OR‐R, a C14‐alkoxy/alkyl‐PBTTT polymer derivative, is of substantial interest for optoelectronics due to its specific fullerene intercalation behavior and enhanced charge‐transfer absorption. Comparing this polymer with (S) and without (O) homocoupling defects reveals that PBTTT‐OR‐R(O) forms stable co‐crystals with PC61BM, while PBTTT‐OR‐R(S ...
Zhen Liu +14 more
wiley +1 more source
Physical Review A, 1995 We propose an implementation of a quantum computer to solve Deutsch's problem, which requires exponential time on a classical computer but only linear time with quantum parallelism. By using a dual-rail qubit representation as a simple form of error correction, our machine can tolerate some amount of decoherence and still give the correct result with ...
Isaac L. Chuang, Yoshihisa Yamamoto
openaire +3 more sources
Advanced Functional Materials, EarlyView.In this study, the interplay of dipolar dynamics and ionic charge transport in MOF compounds is investigated. Synthesizing the novel structure CFA‐25 with integrated freely rotating dipolar groups, local and macroscopic effects, including interactions with Cs cations are explored.
Ralph Freund +6 more
wiley +1 more source
npj Computational Materials, 2023 The ground and excited state calculations at key geometries, such as the Frank–Condon (FC) and the conical intersection (CI) geometries, are essential for understanding photophysical properties.
Shigeki Gocho +6 more
doaj +1 more source