A Gentle Introduction to Quantum Computing
... algorithms that can only be run on quantum computers, and that provide speedups over the corresponding classical algorithms. Not a large number of such algorithms have been discovered or designed till now. The field of quantum computing is still young. However, a few very notable algorithms have bee ...
... algorithms that can only be run on quantum computers, and that provide speedups over the corresponding classical algorithms. Not a large number of such algorithms have been discovered or designed till now. The field of quantum computing is still young. However, a few very notable algorithms have bee ...
Holism, Physical Theories and Quantum Mechanics - Philsci
... The guiding idea of the approach here suggested, is that some property of a whole would be holistic if, according to the theory in question, there is no way we can find out about it using only local means, i.e., by using only all possible non-holistic resources available to an agent. In this case, t ...
... The guiding idea of the approach here suggested, is that some property of a whole would be holistic if, according to the theory in question, there is no way we can find out about it using only local means, i.e., by using only all possible non-holistic resources available to an agent. In this case, t ...
What classicality? Decoherence and Bohr`s classical concepts
... the environment in the system–environment density matrix. And what pops out is the reduced density matrix, which is the main object of interest for decoherence. What we now find is that typically this density matrix will be approximately diagonal in an eigenbasis of some classical observable, such a ...
... the environment in the system–environment density matrix. And what pops out is the reduced density matrix, which is the main object of interest for decoherence. What we now find is that typically this density matrix will be approximately diagonal in an eigenbasis of some classical observable, such a ...
Quintet pairing and non-Abelian vortex string in spin-3/2 cold atomic... Congjun Wu, Jiangping Hu, and Shou-Cheng Zhang
... spin SU (2) symmetry is broken into the U (1) symmetry around the z-axis. A remarkable property is that both quasi-particles and spin wave excitations reverse the sign of their spin quantum numbers sz when going through the HQV loop. Meanwhile the HQV loop also changes sz to maintain spin conservati ...
... spin SU (2) symmetry is broken into the U (1) symmetry around the z-axis. A remarkable property is that both quasi-particles and spin wave excitations reverse the sign of their spin quantum numbers sz when going through the HQV loop. Meanwhile the HQV loop also changes sz to maintain spin conservati ...
Breakdown of the Standard Model
... ● two divergent time scales: ○ critical time scale z=3 (clean) or z=4 (disordered) ○ fermionic time scale z=1 (clean) or z=2 (disordered) ● Construct coupled field theory for both fields ...
... ● two divergent time scales: ○ critical time scale z=3 (clean) or z=4 (disordered) ○ fermionic time scale z=1 (clean) or z=2 (disordered) ● Construct coupled field theory for both fields ...
Pedestrian notes on quantum mechanics
... Establishing measurement rules for indefinables is extremely important for the conceptual constructions in the realm of physics. It is not at all an easy job in the case of quantum indefinables. Since the microscopic world is described by another kind of mechanics, the celebrated quantum mechanics, ...
... Establishing measurement rules for indefinables is extremely important for the conceptual constructions in the realm of physics. It is not at all an easy job in the case of quantum indefinables. Since the microscopic world is described by another kind of mechanics, the celebrated quantum mechanics, ...
Stochastic simulations of conditional states of partially observed
... a general rule we will push this point of view throughout the rest of this paper. However, it is important to point out the key differences between these theories. In the quantum case we can always write thepmeasurement operator (or Kraus operator) as M̂r = Ûr F̂r where Ur is a unitary operator. Th ...
... a general rule we will push this point of view throughout the rest of this paper. However, it is important to point out the key differences between these theories. In the quantum case we can always write thepmeasurement operator (or Kraus operator) as M̂r = Ûr F̂r where Ur is a unitary operator. Th ...
A classical analogue for adiabatic Stark splitting in non-hydrogenic atoms Robicheaux
... There have been many theoretical studies of the effect of a non-Coulombic potential on the spectra of atoms in external fields (e.g. see [5, 7, 20, 21]). These studies have found that the ‘scattering’ from the non-Coulombic core in alkali atoms could lead to quite complex behaviour. In these treatme ...
... There have been many theoretical studies of the effect of a non-Coulombic potential on the spectra of atoms in external fields (e.g. see [5, 7, 20, 21]). These studies have found that the ‘scattering’ from the non-Coulombic core in alkali atoms could lead to quite complex behaviour. In these treatme ...
Primer on topological insulators
... are defined over the two torus T2 3 k (cf. the figure.) Consider now the valence band ground states |ki ≡ |ψ0 (k)i, assumed to be normalized hk|ki = 1 for convenience. As usual in quantum mechanics, these states are defined only up to a global phase, i.e. for any φ(k) ∈ [0, 2π], the state eiφ(k) |ki ...
... are defined over the two torus T2 3 k (cf. the figure.) Consider now the valence band ground states |ki ≡ |ψ0 (k)i, assumed to be normalized hk|ki = 1 for convenience. As usual in quantum mechanics, these states are defined only up to a global phase, i.e. for any φ(k) ∈ [0, 2π], the state eiφ(k) |ki ...
Fibonacci Quanta - University of Illinois at Chicago
... configuration of the reentry. The Koch fractal reenters its own indicational space four times (that is, it is made up of four copies of itself, each one-third the size of the original. We say that the Koch fractal has replication rate four and write R(K)=4. We say it has length ratio three and write ...
... configuration of the reentry. The Koch fractal reenters its own indicational space four times (that is, it is made up of four copies of itself, each one-third the size of the original. We say that the Koch fractal has replication rate four and write R(K)=4. We say it has length ratio three and write ...
Titles and Abstracts
... Abstract: The magic numbers were successfully explained by the nuclear shell model proposed by Gopper-Mayer and Jensen sixty years ago. The shell model predicts that the next doubly magic nucleus in the sequence will contain either 114, 120, 124 or 126 protons and 184 neutrons. However, the dynamica ...
... Abstract: The magic numbers were successfully explained by the nuclear shell model proposed by Gopper-Mayer and Jensen sixty years ago. The shell model predicts that the next doubly magic nucleus in the sequence will contain either 114, 120, 124 or 126 protons and 184 neutrons. However, the dynamica ...
arXiv:quant-ph/0610027v1 4 Oct 2006
... One of the most basic tasks in information theory is the discrimination of two different probability distributions: given a source that outputs variables following one out of two possible probability distributions, determine which one it is with the minimal possible error. In a seminal paper, Cherno ...
... One of the most basic tasks in information theory is the discrimination of two different probability distributions: given a source that outputs variables following one out of two possible probability distributions, determine which one it is with the minimal possible error. In a seminal paper, Cherno ...
AP Physics Practice Test: Rotation, Angular
... into an equation from answer (b). The Normal force is equal to the perpendicular component of the Force of gravity: ...
... into an equation from answer (b). The Normal force is equal to the perpendicular component of the Force of gravity: ...
Renormalization group
In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales. In particle physics, it reflects the changes in the underlying force laws (codified in a quantum field theory) as the energy scale at which physical processes occur varies, energy/momentum and resolution distance scales being effectively conjugate under the uncertainty principle (cf. Compton wavelength).A change in scale is called a ""scale transformation"". The renormalization group is intimately related to ""scale invariance"" and ""conformal invariance"", symmetries in which a system appears the same at all scales (so-called self-similarity). (However, note that scale transformations are included in conformal transformations, in general: the latter including additional symmetry generators associated with special conformal transformations.)As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system. In so-called renormalizable theories, the system at one scale will generally be seen to consist of self-similar copies of itself when viewed at a smaller scale, with different parameters describing the components of the system. The components, or fundamental variables, may relate to atoms, elementary particles, atomic spins, etc. The parameters of the theory typically describe the interactions of the components. These may be variable ""couplings"" which measure the strength of various forces, or mass parameters themselves. The components themselves may appear to be composed of more of the self-same components as one goes to shorter distances.For example, in quantum electrodynamics (QED), an electron appears to be composed of electrons, positrons (anti-electrons) and photons, as one views it at higher resolution, at very short distances. The electron at such short distances has a slightly different electric charge than does the ""dressed electron"" seen at large distances, and this change, or ""running,"" in the value of the electric charge is determined by the renormalization group equation.