M. Shiga and W. Shinoda, heat capacity of water from quantum nuclear dynamics
... systems such as rare-gas clusters except for our preliminary study on water.22 As we will see later in the results of our simulation, the current status might be ascribed to the shortage of computer power and the lack of the efficient heatcapacity estimator until recently. If these difficulties were ...
... systems such as rare-gas clusters except for our preliminary study on water.22 As we will see later in the results of our simulation, the current status might be ascribed to the shortage of computer power and the lack of the efficient heatcapacity estimator until recently. If these difficulties were ...
Quantum mechanics near closed timelike lines
... the methods of differential geometry and general relativity. There are two main deficiencies in that approach. First, one of the principal theoretical problems concernmerely ing closed timelike lines is that of distinguishing counterintuitive effects from downright unphysical ones, but chronology-vi ...
... the methods of differential geometry and general relativity. There are two main deficiencies in that approach. First, one of the principal theoretical problems concernmerely ing closed timelike lines is that of distinguishing counterintuitive effects from downright unphysical ones, but chronology-vi ...
3 Ion Trap Implementations
... hold almost every ion, only a few ions are suitable for quantum computation. The following requirements should be met: • The electronic level structure should be simple to allow the realization of a closed two level system without the need of too many lasers. • The levels used for the qubit transiti ...
... hold almost every ion, only a few ions are suitable for quantum computation. The following requirements should be met: • The electronic level structure should be simple to allow the realization of a closed two level system without the need of too many lasers. • The levels used for the qubit transiti ...
Randomness in (Quantum) Information Processing
... The main focus of this thesis are applications of randomness in classical and quantum information processing, especially in cryptography. The accent is on production of high-quality randomness (randomness extraction), efficient usage of randomness (design of applications consuming as little randomne ...
... The main focus of this thesis are applications of randomness in classical and quantum information processing, especially in cryptography. The accent is on production of high-quality randomness (randomness extraction), efficient usage of randomness (design of applications consuming as little randomne ...
QUANTUM ENTANGLEMENT STATE OF NON
... photons belonging the modes a and b. Taking into account that the condition (10) is quite general, we will study the case when the matrix element Sn, m takes zero value for n > m. In this assumption the coefficient Sn, m can be expressed through the coefficient SN d , Md . Indeed, requiring the zero ...
... photons belonging the modes a and b. Taking into account that the condition (10) is quite general, we will study the case when the matrix element Sn, m takes zero value for n > m. In this assumption the coefficient Sn, m can be expressed through the coefficient SN d , Md . Indeed, requiring the zero ...
Dissipative tunneling - Physik Uni
... ammonia. The tunneling phenomenon became a well known effect shortly after 1928, when G. G a m o w [4], as well as R.W. Gurney and E.U. Condon [5] convincingly explained the decay of nuclei such as adecay, and R. Fowler and L. Nordheim I-6] applied tunneling to the phenomenon of electron emission in ...
... ammonia. The tunneling phenomenon became a well known effect shortly after 1928, when G. G a m o w [4], as well as R.W. Gurney and E.U. Condon [5] convincingly explained the decay of nuclei such as adecay, and R. Fowler and L. Nordheim I-6] applied tunneling to the phenomenon of electron emission in ...
Fundamental aspects of quantum Brownian motion
... thermodynamics.1 In this pioneering work he as well provided a first link between the dissipative forces and the impeding thermal fluctuations, known as the Einstein relation which relates the strength of diffusion to the friction. This intimate connection between dissipation and related fluctuation ...
... thermodynamics.1 In this pioneering work he as well provided a first link between the dissipative forces and the impeding thermal fluctuations, known as the Einstein relation which relates the strength of diffusion to the friction. This intimate connection between dissipation and related fluctuation ...
Influence of measurements on the statistics of work performed on a
... theorem, Eq. (1), the energy of the system is measured at times t = 0 and t = τ , and the work w is determined by the difference of the obtained eigenvalues. Recently, we showed that the Tasaki-Crooks work fluctuation theorem, Eq. (1), as well as other quantum fluctuation theorems, remain unaffected ...
... theorem, Eq. (1), the energy of the system is measured at times t = 0 and t = τ , and the work w is determined by the difference of the obtained eigenvalues. Recently, we showed that the Tasaki-Crooks work fluctuation theorem, Eq. (1), as well as other quantum fluctuation theorems, remain unaffected ...
Guidance Applied to Quantum Operations in Josephson
... The coherent operation and control of quantum mechanical systems is typically controlled by the application of classical external bias fields. These fields are subject to noise which will then couple to the system, limiting the coherence of the quantum mechanical system. In a classical system, a clo ...
... The coherent operation and control of quantum mechanical systems is typically controlled by the application of classical external bias fields. These fields are subject to noise which will then couple to the system, limiting the coherence of the quantum mechanical system. In a classical system, a clo ...
The Fourth Quantum Number
... by the here-proposed ideas of the complex structure and the anomalous Zeeman effect and the limitations of the meaning of our ideas. First of all, these ideas do not pay proper regard to the, in many respects independent, separate appearance of the different term systems (e.g., the singlet and the t ...
... by the here-proposed ideas of the complex structure and the anomalous Zeeman effect and the limitations of the meaning of our ideas. First of all, these ideas do not pay proper regard to the, in many respects independent, separate appearance of the different term systems (e.g., the singlet and the t ...
Quantum gravity without gravitons in a superfluid quantum space.
... justify the compression of space's quanta (ς ) into virtual photons (γς ) within the absorptionemission mechanism. On the right the possible mechanism corresponding to spin½, where the system returns in the same state after a rotation of 720° in the toroidal direction σ1 , while each space's quantum ...
... justify the compression of space's quanta (ς ) into virtual photons (γς ) within the absorptionemission mechanism. On the right the possible mechanism corresponding to spin½, where the system returns in the same state after a rotation of 720° in the toroidal direction σ1 , while each space's quantum ...
Quantum computing
Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.