Ultrafast geometric control of a single qubit using chirped pulses
... single qubit, which are solely based on the geometrical phase. The operations are robust with respect to external noise, since the final states of the qubit do not depend on the dynamical phase [13, 17, 18]. Our proposal combines the pulse area control with adiabaticity by using chirped pulses. An a ...
... single qubit, which are solely based on the geometrical phase. The operations are robust with respect to external noise, since the final states of the qubit do not depend on the dynamical phase [13, 17, 18]. Our proposal combines the pulse area control with adiabaticity by using chirped pulses. An a ...
![Dirac multimode ket-bra operators` [equation]](http://s1.studyres.com/store/data/023088225_1-3900fa8a2c451013a9516ce21d0ecd01-300x300.png)
ppt
... Some properties: • For low pump powers, usually a large number of modes becomes squeezed with similar squeezing parameters • Any superposition of these modes (with right phases!) will exhibit squeezing • The shape of the modes changes with the increasing pump intensity! This and much more in a poste ...
... Some properties: • For low pump powers, usually a large number of modes becomes squeezed with similar squeezing parameters • Any superposition of these modes (with right phases!) will exhibit squeezing • The shape of the modes changes with the increasing pump intensity! This and much more in a poste ...
Sharp Tunneling Peaks in a Parametric Oscillator: Quantum Resonances Missing
... part of the phase, and disregards the effect of fast oscillating terms on their evolution. An important quantum effect in modulated systems is dynamical tunneling [5]. It can be understood for a parametric oscillator, which is excited by modulation at frequency !F close to 2!0 . Classically, a weakl ...
... part of the phase, and disregards the effect of fast oscillating terms on their evolution. An important quantum effect in modulated systems is dynamical tunneling [5]. It can be understood for a parametric oscillator, which is excited by modulation at frequency !F close to 2!0 . Classically, a weakl ...
Module P11.2 The quantum harmonic oscillator
... A study of the simple harmonic oscillator is important in classical mechanics and in quantum mechanics. The reason is that any particle that is in a position of stable equilibrium will execute simple harmonic motion (SHM) if it is displaced by a small amount. A simple example is a mass on the end of ...
... A study of the simple harmonic oscillator is important in classical mechanics and in quantum mechanics. The reason is that any particle that is in a position of stable equilibrium will execute simple harmonic motion (SHM) if it is displaced by a small amount. A simple example is a mass on the end of ...
Permanent Uncertainty: On the Quantum evaluation of the determinant and permanent of a matrix
... for half-integer spin particles (fermions). The only possible completely symmetric or anti-symmetric combinations of general single particle functions are the permanent or determinant of those functions, respectively. Whereas in QM the di erence between permanents and determinants simply corresponds ...
... for half-integer spin particles (fermions). The only possible completely symmetric or anti-symmetric combinations of general single particle functions are the permanent or determinant of those functions, respectively. Whereas in QM the di erence between permanents and determinants simply corresponds ...
Part III
... performed? Problems with von Neumann’s description: 1) Most measurements are more destructive than von Neumann’s ideal. ...
... performed? Problems with von Neumann’s description: 1) Most measurements are more destructive than von Neumann’s ideal. ...
lattice approximations
... Quantum states Quantum states (not necessarily pure states!) are functionals on the observable algebra. On each level of lattice approximation states are represented by positive operators with unital trace: ...
... Quantum states Quantum states (not necessarily pure states!) are functionals on the observable algebra. On each level of lattice approximation states are represented by positive operators with unital trace: ...
PDF - at www.arxiv.org.
... micro-cavities than collective dynamical elimination technique but it is more robust being operative for all necessary temporal durations. ...
... micro-cavities than collective dynamical elimination technique but it is more robust being operative for all necessary temporal durations. ...
Reversing Quantum Measurements
... • However, information from future measurements may tell a fundamentally different story. • This makes quantum state description timeasymmetric. ...
... • However, information from future measurements may tell a fundamentally different story. • This makes quantum state description timeasymmetric. ...
QIPC 2011
... • Ideal quantum measurement for quantum computing: For the selected qubit: if its state is |0>, the classical outcome is always “0” if its state is |1>, the classical outcome is always “1” (100% quantum efficiency) • If quantum efficiency is not perfect but still large (e.g. 50%), desired measurem ...
... • Ideal quantum measurement for quantum computing: For the selected qubit: if its state is |0>, the classical outcome is always “0” if its state is |1>, the classical outcome is always “1” (100% quantum efficiency) • If quantum efficiency is not perfect but still large (e.g. 50%), desired measurem ...
Strong time operators associated with generalized
... (2.2) holds. Then e−itgβ (H) gβ0 (H)−1 Φ ∈ D(T ) follows by Lemma 1.3 and (2) follows. Since T ρ(H)φ = iρ0 (H)φ + ρ(H)T φ, ρ, ρ0 ∈ C01 (R \ Z) and ρ/gβ , ρ0 /gβ ∈ C01 (R \ Z), we have T Φ ∈ D(gβ0 (H)−1 ) if (2.2) holds, and (3) follows. Finally we show (4). Since h = e−itgβ ρ ∈ C01 (R \ Z) and its d ...
... (2.2) holds. Then e−itgβ (H) gβ0 (H)−1 Φ ∈ D(T ) follows by Lemma 1.3 and (2) follows. Since T ρ(H)φ = iρ0 (H)φ + ρ(H)T φ, ρ, ρ0 ∈ C01 (R \ Z) and ρ/gβ , ρ0 /gβ ∈ C01 (R \ Z), we have T Φ ∈ D(gβ0 (H)−1 ) if (2.2) holds, and (3) follows. Finally we show (4). Since h = e−itgβ ρ ∈ C01 (R \ Z) and its d ...
Octonionic Dirac Equation
... material introduced in the recent papers of Joshi et al. [8,9]. Then, we investigate their relations to GL(8, R) and GL(4, C). Establishing this relation we find interesting translation rules, which gives us the opportunity to formulate a consistent OQM. The philosophy behind the translation can be ...
... material introduced in the recent papers of Joshi et al. [8,9]. Then, we investigate their relations to GL(8, R) and GL(4, C). Establishing this relation we find interesting translation rules, which gives us the opportunity to formulate a consistent OQM. The philosophy behind the translation can be ...
4 The Schrodinger`s Equation
... for any real values α, β, then we say that ψ is a simultaneous eigenfunction of Ô1 and Ô2 . For example here, the momentum eigenfunctions up are eigenfunctions of both Ĥfree and p̂. As you will learn in section 7, operators which commute i.e. Ô1 Ô2 − Ô2 Ô1 = 0 will share at least one complete ...
... for any real values α, β, then we say that ψ is a simultaneous eigenfunction of Ô1 and Ô2 . For example here, the momentum eigenfunctions up are eigenfunctions of both Ĥfree and p̂. As you will learn in section 7, operators which commute i.e. Ô1 Ô2 − Ô2 Ô1 = 0 will share at least one complete ...
- Harish-Chandra Research Institute
... Until recently we had been looking for qubit systems, in which all qubits are coupled to each other with unequal couplings, so that all transitions are resolved and we have a complete access to the full Hilbert space. ...
... Until recently we had been looking for qubit systems, in which all qubits are coupled to each other with unequal couplings, so that all transitions are resolved and we have a complete access to the full Hilbert space. ...
Wigner Jenő és a „kvantum disszidensek”
... one which is reflected on the mirror 3 the other on mirror 4 4. The two beams are brought to intereference at 5. The interference pattern at 5 can be calculated as a function of the path difference for the two beams. This is of course a classical experiment in optics and has, in this form, nothing t ...
... one which is reflected on the mirror 3 the other on mirror 4 4. The two beams are brought to intereference at 5. The interference pattern at 5 can be calculated as a function of the path difference for the two beams. This is of course a classical experiment in optics and has, in this form, nothing t ...
