24286 results found
Despite the fact that the fundamental physical laws are symmetric in time, most observed processes do not show this symmetry. Especially the phenomenon of decay seems to involve a kind of irreversibility that makes the definition of a microscopic a...
A novel secure communication protocol is presented, based on an entangled pair of qubits and allowing asymptotically secure key distribution and quasi-secure direct communication. Since the information is transferred in a deterministic manner, no q...
In order to compress quantum messages without loss of information it is necessary to allow the length of the encoded messages to vary. We develop a general framework for variable-length quantum messages in close analogy to the classical case and sh...
In the paper [Phys. Rev. A \textbf{69}, 052319 (2004)], a quantum direct communication protocol is proposed which is claimed to be unconditionally secure even for the case of a noisy channel. We show that this is not the case by giving an undetecta...
A novel communication protocol based on an entangled pair of qubits is presented, allowing secure direct communication from one party to another without the need for a shared secret key. Since the information is transferred in a deterministic manne...
A quantum mechanical theory is proposed which abandons an external parameter ``time'' in favor of a self-adjoint operator on a Hilbert space whose elements represent measurement events rather than system states. The standard quantum mechanical desc...
Oped - Quadruped ROS Package (⭐ 5)
I present a four-party unlockable bound-entangled state, that is, a four-party quantum state which cannot be written in a separable form and from which no pure entanglement can be distilled by local quantum operations and classical communication am...
The <G|oogl|e> challenge for Quantum Coalition Hackathon 2021 (⭐ 23)
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I am in need of sneakers again and I am finding myself frustrated but the big brands. I gravitate to the Samba style: low profile, leather I just can't do it again. They last maybe a year and I am ...
Points: 2180 | Comments: 687 | Author: bpierre
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Points: 247 | Comments: 184 | Author: rbanffy
Points: 993 | Comments: 287 | Author: jasondavies
As the UK is so intrenched with US companies and systems it would be a huge upheaval to all our lives if we were to completely decouple from them, should the worst happen. But if the UK government s...
Dynamical decoupling can be used to preserve arbitrary quantum states despite undesired interactions with the environment, using control Hamiltonians affecting the system only. We present a system-independent analysis of dynamical decoupling based...
Is it worth doing a cardiology fellowship if I'm not interested in interventions? Or is the length of training not worth it?...
Since its founding in 1966, Jefferson Financial has expanded across the Metairie, LA area, now operating 15 branches to make quality financial services accessible to everyone.
Recently, it has been shown that one-dimensional quantum walks can mix more quickly than classical random walks, suggesting that quantum Monte Carlo algorithms can outperform their classical counterparts. We study two quantum walks on the n-dimensi...
