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19922026
Showing 1999 · quant-phShow all

11 papers · 2 filters

quant-ph1999★ 60 cited

Multiqubit Spin

Alexander R. Kessel, Vladimir L. Ermakov

It is proposed that the state space of a quantum object with a complicated discrete spectrum can be used as a basis for multiqubit recording and processing of information in a quan…

quant-ph1999★ 1 cited

Unconditionally Secure Relativistic Quantum Bit Commitment

S. N. Molotkov, S. S. Nazin

A new relativistic quantum protocol is proposed allowing to implement the bit commitment scheme. The protocol is based on the idea that in the relativistic case the field propagati…

quant-ph1999

Relativistic quantum coin tossing

S. N. Molotkov, S. S. Nazin

A relativistic quantum information exchange protocol is proposed allowing two distant users to realize ``coin tossing'' procedure. The protocol is based on the point that in relati…

quant-ph1999★ 5 cited

Solid-state NMR quantum computer with individual access to qubits and some its ensemble developments

K. A. Valiev, A. A. Kokin

Here we made an analysis of the principles of a semiconductor NMR quantum computer and its developments. The known variant of an individual-access computer (B. Kane) and alternativ…

quant-ph1999★ 52 cited

Reliability function of general classical-quantum channel

A. S. Holevo

In information theory the reliability function and its bounds, describing the exponential behavior of the error probability, are the most important quantitative characteristics of…

quant-ph1999

Single Spin State Detection for the Kane Model of Silicon-Based Quantum Computer

S. N. Molotkov, S. S. Nazin

The scheme for measurement of the state of a single spin (or a few spin system) based on the single-electron turnstile and injection of spin polarized electrons from magnetic metal…

quant-ph1999★ 4 cited

On the Teleportation of Continuous Variable

S. N. Molotkov, S. S. Nazin

The measurement procedures used in quantum teleportation are analyzed from the viewpoint of the general theory of quantum-mechanical measurements. It is shown that to find the tele…

quant-ph1999★ 21 cited

Transmission time of wave packets through tunneling barriers

Yu. Lozovik, A. Filinov

The transmission of wave packets through tunneling barriers is studied in detail by the method of quantum molecular dynamics. The distribution function of the times describing the…

quant-ph1999

Wave Function Interpretation and Quantum Mechanics Equations

Andrey V. Novikov-Borodin

The quantum mechanics description of a physical object stretched in space and stable in time from the relativistic space-time properties point of view, introduced in special theory…

quant-ph1999

``Classical'' Propagator and Path Integral in the Probability Representation of Quantum Mechanics

Olga Man'ko, V. I. Man'ko

In the probability representation of the standard quantum mechanics, the explicit expression (and its quasiclassical van-Fleck approximation) for the ``classical'' propagator (tran…

quant-ph1999★ 6 cited

Models of Quantum Computers and Decoherence Problem

I. V. Volovich

Mathematical models of quantum computers such as a multidimensional quantum Turing machine and quantum circuits are described and its relations with lattice spin models are discuss…