Reading out a quantum bit
... In order to get the result of a quantum algorithm we need to read out the state of the qubits in the out register when the algorithm is done. As we will see later one also needs to read out certain qubits during the computation if we want to perform error correction. On the algorithm level a read-ou ...
... In order to get the result of a quantum algorithm we need to read out the state of the qubits in the out register when the algorithm is done. As we will see later one also needs to read out certain qubits during the computation if we want to perform error correction. On the algorithm level a read-ou ...
A quantum logical and geometrical approach to the study of
... system兲 are in correspondence with closed subspaces of Hilbert space H. The set of subspaces C共H兲 with the partial order defined by set inclusion 債, intersection of subspaces 艚 as the lattice meet, closed linear spam of subspaces 丣 as the lattice join, and orthocomplementation ¬ as lattice complemen ...
... system兲 are in correspondence with closed subspaces of Hilbert space H. The set of subspaces C共H兲 with the partial order defined by set inclusion 債, intersection of subspaces 艚 as the lattice meet, closed linear spam of subspaces 丣 as the lattice join, and orthocomplementation ¬ as lattice complemen ...
Optical and Quantum Communications—J. H. Shapiro, N. C. Wong
... transferring the qubit from the photon to the degenerate B levels of Fig. 2(a), and thence to longlived storage levels, by coherently driving the B-to-D transitions. By means of optically-offresonant (OOR) transitions, the Bell states of two atoms in a single vacuum-chamber trap can be converted int ...
... transferring the qubit from the photon to the degenerate B levels of Fig. 2(a), and thence to longlived storage levels, by coherently driving the B-to-D transitions. By means of optically-offresonant (OOR) transitions, the Bell states of two atoms in a single vacuum-chamber trap can be converted int ...
Quantum analogue computing
... methods kick in wherever analytical calculations become too complicated or intractable, which can happen even for simple systems, like three bodies moving under their mutual gravitational interactions. We use computer simulation to test our models of the real world, by calculating in detail what the ...
... methods kick in wherever analytical calculations become too complicated or intractable, which can happen even for simple systems, like three bodies moving under their mutual gravitational interactions. We use computer simulation to test our models of the real world, by calculating in detail what the ...
Projective Measurements
... • Remark: Orthogonal states can always be distinguished via constructing appropriate measurement operators (projectors). This is another explanation why orthogonal (classical) states can be copied as was stated in Section 2.7 because in possession of the exact information about such states we can bu ...
... • Remark: Orthogonal states can always be distinguished via constructing appropriate measurement operators (projectors). This is another explanation why orthogonal (classical) states can be copied as was stated in Section 2.7 because in possession of the exact information about such states we can bu ...
Full text in PDF form
... It is clear that this fact may be interpreted as follows: for the observer moving together with information its loss can occur only at the transition to smaller scales, i.e. to greater deformation parameter α. Now we consider the general Information Problem. Note that with the classical Quantum Mech ...
... It is clear that this fact may be interpreted as follows: for the observer moving together with information its loss can occur only at the transition to smaller scales, i.e. to greater deformation parameter α. Now we consider the general Information Problem. Note that with the classical Quantum Mech ...
Quantum Computer - Physics, Computer Science and Engineering
... 2. Interference – since a QC can work on several classical inputs at once, they can interfere with/influence one another (either constructively or destructively): |f> = |0 1> + |1 0> ...
... 2. Interference – since a QC can work on several classical inputs at once, they can interfere with/influence one another (either constructively or destructively): |f> = |0 1> + |1 0> ...
Quantum cryptography
... where h is Planck constant, H(t) is| a(t )Hamiltonian U (t ) | (0) (total energy) of the system that can be represented by a Hermitian matrix and Φ(t) is the state of the system in time t. If the Hamiltonian is time independent then the above Shrödinger equation has solution ...
... where h is Planck constant, H(t) is| a(t )Hamiltonian U (t ) | (0) (total energy) of the system that can be represented by a Hermitian matrix and Φ(t) is the state of the system in time t. If the Hamiltonian is time independent then the above Shrödinger equation has solution ...
![Dirac multimode ket-bra operators` [equation]](http://s1.studyres.com/store/data/023088225_1-3900fa8a2c451013a9516ce21d0ecd01-300x300.png)
Quantum spin systems from the perspective of quantum
... – Long-range distribution of entanglement can be done via a quantum repeater : ...
... – Long-range distribution of entanglement can be done via a quantum repeater : ...
![arXiv:0905.2946v1 [cond-mat.str-el] 18 May 2009](http://s1.studyres.com/store/data/003310684_1-f6852d9094cc4ebe5853c88b867e67b0-300x300.png)
- Philsci
... property of simultaneity; a field exists throughout space simultaneously, whereas the ergodic motion of a particle exists throughout space in a time-divided way. If the wave function is a physical field, then the mass and charge density will be distributed in space simultaneously for a charged quant ...
... property of simultaneity; a field exists throughout space simultaneously, whereas the ergodic motion of a particle exists throughout space in a time-divided way. If the wave function is a physical field, then the mass and charge density will be distributed in space simultaneously for a charged quant ...
Quantum error correction
... other systems give rise to a full set of quantum phenomena, many of which have no correspondence in classical information theory. These phenomena include decoherence, as a consequence of entanglement. Decoherence can also be understood as “information leakage”, i.e., knowledge of an event is transfe ...
... other systems give rise to a full set of quantum phenomena, many of which have no correspondence in classical information theory. These phenomena include decoherence, as a consequence of entanglement. Decoherence can also be understood as “information leakage”, i.e., knowledge of an event is transfe ...
