Results 11 to 20 of about 4,161,887 (128)

Excited-State Antiaromaticity in Nonbenzenoid Aromatics: Examining the Dynamics of Intramolecular Proton Transfer With a Small Driving Force. [PDF]

open access: yesAngew Chem Int Ed Engl
The excited‐state antiaromaticity of hydroxybenzotropyliums (HBTs) can be tuned through substituent effects to bring the aromatic ‘enol’ (E) and keto (K) tautomers close in energy. This leads to abnormally slow excited‐state proton transfer (on the ns timescale), giving rise to dual fluorescence emission and weak photoacidity.
Saha PK   +6 more
europepmc   +3 more sources

Donor-Acceptor Pentacene Analogues With Near-Infrared Emission and Tunable Aromaticity. [PDF]

open access: yesAngew Chem Int Ed Engl
Air‐ and photostable heterocyclic pentacene analogues with donor and acceptor groups flanking a para‐quinodimethane core exhibit large dipole moments, narrow bandgaps, reversible redox behavior, and NIR‐I to NIR‐II absorption and emission with pronounced solvatochromism.
Nowak K   +6 more
europepmc   +3 more sources

Quantum metrology with molecular ensembles [PDF]

open access: yes, 2010
The field of quantum metrology promisesmeasurement devices that are fundamentally superior to conventional technologies. Specifically, when quantum entanglement is harnessed, the precision achieved is supposed to scale more favorably with the resources ...
Marcus Schaffry   +26 more
core   +2 more sources

Stabilizer Codes and Quantum Error Correction [PDF]

open access: yes, 1997
Controlling operational errors and decoherence is one of the major challenges facing the field of quantum computation and other attempts to create specified many-particle entangled states.
Daniel Gottesman, Gottesman, Daniel Eric
core   +1 more source

Quantum Hypercomputation - Hype or Computation? [PDF]

open access: yes, 2007
A recent attempt to compute a (recursion--theoretic) non--computable function using the quantum adiabatic algorithm is criticized and found wanting.
Amit Hagar   +3 more
core   +1 more source

Quantum Humeanism, or: physicalism without properties [PDF]

open access: yes, 2014
In recent literature, it has become clear that quantum physics does not refute Humeanism: Lewis’s thesis of Humean supervenience can be literally true even in the light of quantum entanglement.
Michael Esfeld, Esfeld, Michael
core   +1 more source

Interpretation in quantum physics as hidden curriculum [PDF]

open access: yes, 2010
Prior research has demonstrated how the realist perspectives of classical physics students can translate into specific beliefs about quantum phenomena when taking an introductory modern physics course.
Baily, Charles   +6 more
core   +1 more source

Practical long-distance quantum key distribution system using decoy levels [PDF]

open access: yes, 2009
Quantum key distribution (QKD) has the potential for widespread real-world applications, but no secure long-distance experiment has demonstrated the truly practical operation needed to move QKD from the laboratory to the real world due largely to ...
Nordholt, J.E.   +19 more
core   +1 more source

The GRW flash theory: a relativistic quantum ontology of matter in space-time? [PDF]

open access: yes, 2013
John Bell proposed an ontology for the GRW modification of quantum mechanics in terms of flashes occurring at space-time points. The paper spells out the motivation for this ontology, enquires into the status of the wave-function in it, critically ...
Gisin, Nicolas   +3 more
core   +1 more source

Engineering multiphoton states for linear optics computation [PDF]

open access: yes, 2006
Transformations achievable by linear optical components allow to generate the whole unitary group only when restricted to the one-photon subspace of a multimode Fock space.
P. Aniello   +9 more
core   +2 more sources

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