An interpretation of quantum mechanics in terms of classical concepts, ``beables,'' due to de Broglie, Bohm, and Bell (BBB) is generalized and further developed. By assuming that all physical quantities take discrete values on sufficiently small scales, we can use this interpretation to give ...
Quantum mechanics/molecular mechanics (QM/MM) methods treat part of the system (e.g., the catalytic site of anenzymeand a substrate) quantum-mechanically and the rest in more approximate terms, usually similar to normal MD simulations (seeFig. 3for an illustration of the scale of QM/MM and...
In recent years, quantum image processing is one of the most active fields in quantum computation and quantum information. Image scaling as a kind of image geometric transformation has been widely studied and applied in the classical image processing, however, the quantum version of which does not...
We present a simple one-dimensional quantum-mechanical model for a particle attached to a surface. We solve the Schr"odinger equation in terms of Weber functions and discuss the behavior of the eigenvalues and eigenfunctions. We derive the virial theorem and other exact relationships as well as ...
3.6.3Quantum Mechanics/Molecular Mechanics Methods The QM/MM approach is a powerful method for modelingenzymatic reactions, as they combine the benefits and thestrengthof both the QM andMMmethods. The basic idea of this methodology is the partition of the system under investigation in two regions...
The computational efficiency of quantum mechanics can be characterized in terms of the qubit circuit model, which is defined by a few simple properties: each computational gate is a reversible transformation in a connected matrix group; single wires carry quantum bits, i.e. states of a three-dim...
Provision of entangled secrets that can be shared for a long time in a room temperature is a challenging task for the present day technology because of the inevitable decoherence. QIA protocols based on classic shared secret avoid this difficulty. In this class of protocols, quantum mechanics is...
Where does quantum mechanics part ways with classical mechanics? How does quantum randomness differ fundamentally from classical randomness? We cannot fully explain how the theories differ until we can derive them within a single axiomatic framework, all
Quantum secure communication, based on the basic principles of quantum mechanics, has unconditional security in theory and can provide an absolutely secure information channel for the safe transmission of the power grid production and operation data. The existing security methods of power information ...
Because of quantum entanglement and other nonintuitive features in quantum mechanics, qubits have many advantages over classical bits, but their nature presents challenges in designing quantum algorithms. We first built the quantum circuit theoretically, and then ran it on the IBM Quantum Experience ...