The Quantum Hall Effect
... particles that roam around these systems carry a fraction of the charge of the electron, as if the electron has split itself into several pieces. Yet this occurs despite the fact that the electron is (and remains!) an indivisible constituent of matter. In fact, it is not just the charge of the elect ...
... particles that roam around these systems carry a fraction of the charge of the electron, as if the electron has split itself into several pieces. Yet this occurs despite the fact that the electron is (and remains!) an indivisible constituent of matter. In fact, it is not just the charge of the elect ...
Spin-density wave in a quantum wire
... not possible in one-dimensional wire. (Similarly, one-dimensional superconductivity is not possible as well). This argument implies that small perturbations that reduce or break the rotational symmetry of the problem acquire very important role. By reducing the symmetry from full spin-rotational inv ...
... not possible in one-dimensional wire. (Similarly, one-dimensional superconductivity is not possible as well). This argument implies that small perturbations that reduce or break the rotational symmetry of the problem acquire very important role. By reducing the symmetry from full spin-rotational inv ...
Diapositive 1
... During time ~ 1/ the spin projection transverse to the random magnetic field is (on the average) completely destroyed, while its projection along the direction of the field is conserved After time c the magnetic field changes its direction, and the initial spin polarization will disappear. Thus fo ...
... During time ~ 1/ the spin projection transverse to the random magnetic field is (on the average) completely destroyed, while its projection along the direction of the field is conserved After time c the magnetic field changes its direction, and the initial spin polarization will disappear. Thus fo ...
Experiments in “Quantum Erasure” and “Delayed
... chance of being in any of the set of two trajectories that exit the slits and impact at one point on the screen. At the screen, it has no chance of passing it. It therefore “descends” out of higher dimensional reality and “chooses” probabilistically any point where the double-slit pattern can fo ...
... chance of being in any of the set of two trajectories that exit the slits and impact at one point on the screen. At the screen, it has no chance of passing it. It therefore “descends” out of higher dimensional reality and “chooses” probabilistically any point where the double-slit pattern can fo ...
Quantum critical dynamics of the random transverse-field Ising spin chain
... where the are Pauli matrices at site l and the Jl exchange couplings and the hl transverse fields are random variables with distributions π(J) and ρ(h), respectively. The Hamiltonian in (1) is closely related to the transfer matrix of a classical two-dimensional layered Ising model, which was first ...
... where the are Pauli matrices at site l and the Jl exchange couplings and the hl transverse fields are random variables with distributions π(J) and ρ(h), respectively. The Hamiltonian in (1) is closely related to the transfer matrix of a classical two-dimensional layered Ising model, which was first ...
Quantum connection and Poincare19 e--Cartan form
... standard methods such as fibred manifolds, jet spaces, non–linear connections, systems of connections, cosymplectic structures and Froelicher smooth spaces [47, 48, 49]. This theory has been extended to spin particles in cooperation with D. Canarutto [5], further developed in cooperation with J. Jan ...
... standard methods such as fibred manifolds, jet spaces, non–linear connections, systems of connections, cosymplectic structures and Froelicher smooth spaces [47, 48, 49]. This theory has been extended to spin particles in cooperation with D. Canarutto [5], further developed in cooperation with J. Jan ...
A functional quantum programming language
... input qubit x, returns one of two superpositions of a qubit. We can also easily calculate that applying had twice gets us back where we started by cancelling out amplitudes. An important feature of quantum programming is the possibility to create superpositions which have non-local effects. A simple ...
... input qubit x, returns one of two superpositions of a qubit. We can also easily calculate that applying had twice gets us back where we started by cancelling out amplitudes. An important feature of quantum programming is the possibility to create superpositions which have non-local effects. A simple ...
The mc2 rest energy can be produced by the spinning of fermions
... interactions can be described by the Dirac equation of quantum mechanics [1]. Certain physical parameters of these objects i.e. the radius and the moment of inertia, which are of basic importance in classical physics, are not considered to be observables in quantum mechanics, since the interactions ...
... interactions can be described by the Dirac equation of quantum mechanics [1]. Certain physical parameters of these objects i.e. the radius and the moment of inertia, which are of basic importance in classical physics, are not considered to be observables in quantum mechanics, since the interactions ...
A persistent particle ontology for QFT in terms of the Dirac sea
... and that explains the states of macroscopic systems as well as their stability in terms of these trajectories (see Dürr et al. (2013a)). When it comes to QFT, the requirement for an ontology is the same as in QM: the measurement problem plagues QFT in the same way as QM (see Barrett (2014)); any pro ...
... and that explains the states of macroscopic systems as well as their stability in terms of these trajectories (see Dürr et al. (2013a)). When it comes to QFT, the requirement for an ontology is the same as in QM: the measurement problem plagues QFT in the same way as QM (see Barrett (2014)); any pro ...
From quantum cloning to quantum key distribution with
... measures one of the two quadratures by homodyne detection and publicly discloses whether x or p was measured. If the encoded and measured quadratures coincide, then Alice and Bob know that they share correlated Gaussian data, from which they can distill a secret key by using appropriate techniques ( ...
... measures one of the two quadratures by homodyne detection and publicly discloses whether x or p was measured. If the encoded and measured quadratures coincide, then Alice and Bob know that they share correlated Gaussian data, from which they can distill a secret key by using appropriate techniques ( ...
11 Selection Postulates and Probability Rules in the Problem of
... key features that lead to the solution of the problem are, first, entanglement of states of the measured system S and the device D during measurement like in (2), second, existence of the perception horizon of the human consciousness restricted only by the classical objects, and third, uniqueness of ...
... key features that lead to the solution of the problem are, first, entanglement of states of the measured system S and the device D during measurement like in (2), second, existence of the perception horizon of the human consciousness restricted only by the classical objects, and third, uniqueness of ...
Bell's theorem
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Bell's theorem is a ‘no-go theorem’ that draws an important distinction between quantum mechanics (QM) and the world as described by classical mechanics. This theorem is named after John Stewart Bell.In its simplest form, Bell's theorem states:Cornell solid-state physicist David Mermin has described the appraisals of the importance of Bell's theorem in the physics community as ranging from ""indifference"" to ""wild extravagance"". Lawrence Berkeley particle physicist Henry Stapp declared: ""Bell's theorem is the most profound discovery of science.""Bell's theorem rules out local hidden variables as a viable explanation of quantum mechanics (though it still leaves the door open for non-local hidden variables). Bell concluded:Bell summarized one of the least popular ways to address the theorem, superdeterminism, in a 1985 BBC Radio interview: