Acting on Gaps? John Searle’s Conception of Free Will

We suggest that on the basis of searle’s Biological naturalism, the concept of free will can be established in accord with physical determinism and randomness, and also in accord with the subjective experience of freedom. In D. Franken, A. Karakus, and J. G. Michel, editors, John R. Searle: Thinking About…

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Ocular following response to sampled motion

We investigate the impact of monitor frame rate on the human ocular following response (OFR) and find that the response latency considerably depends on the frame rate in the range of 80–160 Hz, which is far above the flicker fusion limit. From the lowest to the highest frame rate the latency…

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On the security of the ping-pong protocol

We briefly review the security of the ping-pong protocol in light of several attack scenarios suggested by various authors since the proposal of the protocol. We refute one recent attack on an ideal quantum channel, and show that a recent claim of falseness of our original security proof is erroneous….

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Basic concepts for a quantum mechanical theory of events

A physical theory is proposed that obeys both the principles of special relativity and of quantum mechanics. As a key feature, the laws are formulated in terms of quantum events rather than of particle states. Temporal and spatial coordinates of a quantum event are treated on equal footing, namely as…

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Lossless quantum data compression and secure direct communication (Thesis)

Diese Dissertation behandelt die Kodierung und Verschickung von Information durch einen Quantenkanal. Ein Quantenkanal besteht aus einem quantenmechanischen System, welches vom Sender manipuliert und vom Empfänger ausgelesen werden kann. Dabei repräsentiert der individuelle Zustand des Kanals die Nachricht. Die zwei Themen der Dissertation umfassen 1) die Möglichkeit, eine Nachricht in…

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Deterministic Secure Direct Communication Using Entanglement

A novel secure communication protocol is presented, based on an entangled pair of qubits and allowing asymptotically secure key distribution and quasisecure direct communication. Since the information is transferred in a deterministic manner, no qubits have to be discarded. The transmission of information is instantaneous, i.e., the information can be…

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