Design and proof of concept for silicon-based quantum dot
... favored. The energetic stability of such single-electron filling is computed below. In contrast with conventional, laterally coupled dots, we emphasize that no electrical connections are made to the quantum well layer. We shall limit our discussion in this paper to two qubits, though clearly the des ...
... favored. The energetic stability of such single-electron filling is computed below. In contrast with conventional, laterally coupled dots, we emphasize that no electrical connections are made to the quantum well layer. We shall limit our discussion in this paper to two qubits, though clearly the des ...
Classical statistical distributions can violate Bell`s - Philsci
... counterfactual events – the main ingredient in the derivation of the Bell inequalities – becomes undefined, a situation that can have statistical (related to the detection process) or dynamical (interaction related) origins, as discussed in the two examples given in this work. Before investigating t ...
... counterfactual events – the main ingredient in the derivation of the Bell inequalities – becomes undefined, a situation that can have statistical (related to the detection process) or dynamical (interaction related) origins, as discussed in the two examples given in this work. Before investigating t ...
Quantum Phase Transitions - Subir Sachdev
... noted in Eqs. (5) and (11) for the lattice models. The s > sc phase is the paramagnet with hφα i = 0. The excitations in this phase can be understood as small harmonic oscillations of φα about the point (in field space) φα = 0. A glance at Eqn (12) shows that there are n such oscillators for each wa ...
... noted in Eqs. (5) and (11) for the lattice models. The s > sc phase is the paramagnet with hφα i = 0. The excitations in this phase can be understood as small harmonic oscillations of φα about the point (in field space) φα = 0. A glance at Eqn (12) shows that there are n such oscillators for each wa ...
Identical Quantum Particles and Weak Discernibility - Philsci
... predicates refer to physical properties and relations (and not to haecceities). There can now be three kinds of discernibility ([6]). Two objects are absolutely discernible if there is a one-place predicate that applies to only one of them; relatively discernible if there is a two-place predicate th ...
... predicates refer to physical properties and relations (and not to haecceities). There can now be three kinds of discernibility ([6]). Two objects are absolutely discernible if there is a one-place predicate that applies to only one of them; relatively discernible if there is a two-place predicate th ...
Entanglement of Atoms via Cold Controlled Collisions
... the time-dependent Schrödinger equation with the Hamiltonian (1). We have taken harmonic potentials with various time-dependent displacements dx b std and frequencies. Their form as well as the parameter range is motivated by the specific implementations outlined below. The figure of merit that we h ...
... the time-dependent Schrödinger equation with the Hamiltonian (1). We have taken harmonic potentials with various time-dependent displacements dx b std and frequencies. Their form as well as the parameter range is motivated by the specific implementations outlined below. The figure of merit that we h ...
Quantum energy gaps and first-order mean-field transitions
... transition the two states whose free energies cross are generally far from each other in the phase space; quantum tunneling must be inefficient. To make this argument more precise, one can consider the energy gap 6 between the two lowest energy states using the standard implementation [2] for quantu ...
... transition the two states whose free energies cross are generally far from each other in the phase space; quantum tunneling must be inefficient. To make this argument more precise, one can consider the energy gap 6 between the two lowest energy states using the standard implementation [2] for quantu ...
The quantum measurement problem, the role of the observer and
... where α and β are complex numbers such that α2 is the probability of seeing a head when we look at the coin and β2 is the probability of seeing a tail when we look at the coin. (z2 is the modulus square of a complex number z and is always a positive real number. But don't worry if you don't kn ...
... where α and β are complex numbers such that α2 is the probability of seeing a head when we look at the coin and β2 is the probability of seeing a tail when we look at the coin. (z2 is the modulus square of a complex number z and is always a positive real number. But don't worry if you don't kn ...
Quantum Computing Lecture 1 Bits and Qubits What is Quantum
... Indeed, any system with a finite set of discrete, stable states, with controlled transitions between them will do. ...
... Indeed, any system with a finite set of discrete, stable states, with controlled transitions between them will do. ...
After a 30-year struggle to harness quantum weirdness for
... The result has been a rate of progress so slow that sceptics often compare quantum computing to fusion energy: it is a revolutionary technology that always seems to be decades away. But maybe not. Many physicists in the field think that their 30-year slog may finally be on the verge of paying divide ...
... The result has been a rate of progress so slow that sceptics often compare quantum computing to fusion energy: it is a revolutionary technology that always seems to be decades away. But maybe not. Many physicists in the field think that their 30-year slog may finally be on the verge of paying divide ...
Quantum Mechanics: what is it and why is it interesting? Dr. Neil Shenvi
... governed by the Schrodinger equation Postulate 3: Measurement of a system is associated with a linear, Hermitian operator ...
... governed by the Schrodinger equation Postulate 3: Measurement of a system is associated with a linear, Hermitian operator ...
The Emergence of Classical Dynamics in a Quantum World
... systems exhibit extreme sensitivity to initial conditions. This means that, if the initial states of two identical copies of a system (for example, particle positions and momenta) differ by some tiny amount, those differences magnify with time at an exponential rate. As a result, in a very short tim ...
... systems exhibit extreme sensitivity to initial conditions. This means that, if the initial states of two identical copies of a system (for example, particle positions and momenta) differ by some tiny amount, those differences magnify with time at an exponential rate. As a result, in a very short tim ...
Creation of multiple electron-positron pairs in arbitrary fields
... The Dirac equation i 兩典 / t = h兩典 for the single-particle state 兩典 has a formal solution in terms of the time evolution operator u共t兲 = To exp共−i兰hdt兲, which, in principle, contains all the information about the quantum-mechanical system. As h is time dependent in general, To denotes the requi ...
... The Dirac equation i 兩典 / t = h兩典 for the single-particle state 兩典 has a formal solution in terms of the time evolution operator u共t兲 = To exp共−i兰hdt兲, which, in principle, contains all the information about the quantum-mechanical system. As h is time dependent in general, To denotes the requi ...
A Further Look at Waveguide Lasers
... of view of the MB equations, where matter and e.m. field are present on different grounds, and assume the general point of view that matter and radiation are both quantum fields mutually interacting through the well-known and wellestablished principles of the QED interaction. No modeling is introduc ...
... of view of the MB equations, where matter and e.m. field are present on different grounds, and assume the general point of view that matter and radiation are both quantum fields mutually interacting through the well-known and wellestablished principles of the QED interaction. No modeling is introduc ...