Results 111 to 120 of about 65,461 (314)

Automated equivalence checking of quantum information systems [PDF]

Quantum technologies have progressed beyond the laboratory setting and are beginning to make an impact on industrial development. The construction of practical, general purpose quantum computers has been challenging, to say the least.
Ardeshir-Larijani, Ebrahim
core  

Quantum key distribution using quantum dot single-photon emitting diodes in the red and near infrared spectral range [PDF]

, 2012
We report on in-lab free space quantum key distribution (QKD) experiments over 40 cm distance using highly efficient electrically driven quantum dot single-photon sources emitting in the red as well as near-infrared spectral range.
Heindel, Tobias, Eichfelder, Marcus, Hargart, F., Michler, P., Eichfelder, M., Rossbach, R., Kessler, C., Rau, Markus, Weinfurter, Harald, Reitzenstein, S., Höfling, Sven, Schneider, C., Lermer, Matthias, Nauerth, Sebastian, Rossbach, Robert, Fuerst, M., Forchel, A., Forchel, Alfred, Reitzenstein, Stephan, Weinfurter, H., Kessler, Christian A., Schulz, W., Weier, Henning, Fuerst, Martin, Hoefling, S., Rau, M., Schulz, Wolfgang-Michael, Michler, Peter, Nauerth, S., Jetter, M., Schneider, Christian, Jetter, Michael, Lermer, M., Weier, H., Heindel, T., Hargart, Fabian, Kamp, Martin, Kamp, M.   +37 more
core   +1 more source

Lead‐Free Chiral Hybrid Metal Halides for Circularly Polarized Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Lead‐free chiral hybrid metal halides provide a versatile platform for realizing chiroptical responses through chiral modulation of metal–halide frameworks with diverse dimensionalities, induces inversion‐symmetry breaking and enables dissymmetric excited‐state transitions toward efficient circularly polarized luminescence and electroluminescence. This
Kun Zhu, Li Wan
wiley   +1 more source

Quantum probe hyperpolarisation of molecular nuclear spins

Nature Communications, 2018
Molecules with ‘hyperpolarised’ nuclear spins can be used to improve MRI performance but require an efficient polarisation method. Broadway et al. demonstrate a quantum control protocol using a nitrogen vacancy centre inside a diamond to hyperpolarise ...
David A. Broadway, Jean-Philippe Tetienne, Alastair Stacey, James D. A. Wood, David A. Simpson, Liam T. Hall, Lloyd C. L. Hollenberg   +6 more
doaj   +1 more source

One-Photon-Interference Quantum Secure Direct Communication [PDF]

Quantum secure direct communication (QSDC) is a quantum communication paradigm that transmits confidential messages directly using quantum states. Measurement-device-independent (MDI) QSDC protocols can eliminate the security loopholes associated with ...
Yun-Rong Zhang, Min Wang, Xiang-Jie Li, Xing-Bo Pan, Gui-Lu Long   +4 more
core   +1 more source

Quantum information theory and the foundations of quantum mechanics [PDF]

, 2004
This thesis is a contribution to the debate on the implications of quantum information theory for the foundational problems of quantum mechanics. In Part I an attempt is made to shed some light on the nature of information and quantum information theory.
Timpson, Christopher, Timpson, Christopher Gordon, Brown, Harvey R, Brown, Harvey R.   +3 more
core   +2 more sources

Temperature Correction in a Single Luminophore Pressure‐Sensitive Paint Using a Dual‐Emitting Gold Acridine Complex

Advanced Optical Materials, EarlyView.
The use of pressure‐sensitive luminescent molecules to quantify surface pressure in wind tunnel testing has revolutionized experimental aerodynamics. This work develops a dual‐emitting gold acridine complex for the simultaneous sensing of pressure and temperature independently of each other.
Alexander C. Brannan, Nguyen Le Phuoc, Mikko Linnolahti, Mark K. Quinn, Alexander S. Romanov, Elliott J. Nunn   +5 more
wiley   +1 more source

Silicon quantum processor with robust long-distance qubit couplings

Nature Communications, 2017
Quantum computers will require a large network of coherent qubits, connected in a noise-resilient way. Tosi et al. present a design for a quantum processor based on electron-nuclear spins in silicon, with electrical control and coupling schemes that ...
Guilherme Tosi, Fahd A. Mohiyaddin, Vivien Schmitt, Stefanie Tenberg, Rajib Rahman, Gerhard Klimeck, Andrea Morello   +6 more
doaj   +1 more source

Quantum process tomography of a high-dimensional quantum communication channel [PDF]

, 2019
The characterization of quantum processes, e.g. communication channels, is an essential ingredient for establishing quantum information systems. For quantum key distribution protocols, the amount of overall noise in the channel determines the rate at ...
Ebrahim Karimi, Hufnagel, Felix, Bouchard, Frederic, Alicia Sit, Fickler, Robert, Robert Fickler, Heshami, Khabat, Felix Hufnagel, Karimi, Ebrahim, Aazad Abbas, Khabat Heshami, Frédéric Bouchard, Dominik Koutný, Koutny, Dominik, Abbas, Aazad, Sit, Alicia   +15 more
core   +1 more source

Digital Twin of a One‐Sun‐Driven Luminescent‐Concentrator‐Assisted Planar Solar‐Pumped Fiber Laser

Advanced Optical Materials, EarlyView.
An experimentally‐validated digital twin of a one‐sun solar‐pumped fiber laser enables a design exhibit 13‐times higher output power at 1064 nm to be achieved. Despite its simple appearance, the multitude of choices in the design parameters make finding this improved very tedious in the lab, thus the digital twin can save significant time and effort ...
Anvarjon Sherniyozov, Dmitry Busko, Bryce S. Richards   +2 more
wiley   +1 more source