Results 51 to 60 of about 49,915 (309)
Achieving the ultimate end-to-end rates of lossy quantum communication networks
npj Quantum Information, 2022 The field of quantum communications promises the faithful distribution of quantum information, quantum entanglement, and absolutely secret keys, however, the highest rates of these tasks are fundamentally limited by the transmission distance between ...
Matthew S. Winnel +3 more
doaj +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
The electron density: a fidelity witness for quantum computation. [PDF]
Chem Sci, 2023 There is currently no combination of quantum hardware and algorithms that can provide an advantage over conventional calculations of molecules or materials.
Skogh M +8 more
europepmc +2 more sources
Adiabatic Quantum Computation is Equivalent to Standard Quantum Computation [PDF]
45th Annual IEEE Symposium on Foundations of Computer Science, 2004 Adiabatic quantum computation has recently attracted attention in the physics and computer science communities, but its computational power was unknown. We describe an efficient adiabatic simulation of any given quantum algorithm, which implies that the adiabatic computation model and the conventional quantum computation model are polynomially ...
Dorit Aharonov +5 more
openaire +3 more sources
Verifying the security of a continuous variable quantum communication protocol via quantum metrology
npj Quantum InformationQuantum mechanics offers the possibility of unconditionally secure communication between multiple remote parties. Security proofs for such protocols typically rely on bounding the capacity of the quantum channel in use.
Lorcán O. Conlon +6 more
doaj +1 more source
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Quantum computation and quantum information [PDF]
International Journal of Parallel, Emergent and Distributed Systems, 2006 The paper is intended to be a survey of all the important aspects and results that have shaped the field of quantum computation and quantum information. The reader is first familiarized with those features and principles of quantum mechanics providing a more efficient and secure information processing.
Marius Nagy, Selim G. Akl
openaire +1 more source
A fixed phase tunable directional coupler based on coupling tuning
Scientific ReportsThe field of photonic integrated circuits has witnessed significant progress in recent years, with a growing demand for devices that offer high-performance reconfigurability.
Yang Yang +4 more
doaj +1 more source
A quantum hamiltonian simulation benchmark
npj Quantum Information, 2022 Hamiltonian simulation is one of the most important problems in quantum computation, and quantum singular value transformation (QSVT) is an efficient way to simulate a general class of Hamiltonians.
Yulong Dong, K. Birgitta Whaley, Lin Lin
doaj +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source