Results 31 to 40 of about 30,582 (261)
Experimental noiseless linear amplification using weak measurements
New Journal of Physics, 2016 The viability of quantum communication schemes rely on sending quantum states of light over long distances. However, transmission loss can degrade the signal strength, adding noise.
Joseph Ho +3 more
doaj +1 more source
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
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 +6 more sources
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
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
Emerging experimental and computational methods for studying redox‐regulated structural transitions
FEBS Letters, EarlyView.Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass +2 more
wiley +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
Quantum computers and quantum coherence [PDF]
Journal of Magnetism and Magnetic Materials, 1999 13 pages, latex, one eps figure. Prepared for special issue of J. Mag. Magn. Matl., "Magnetism beyond 2000".
DiVincenzo, D. P., Loss, D.
openaire +2 more sources
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