arXiv:quant-ph/0610027v1 4 Oct 2006
... The optimal error probability of discriminating two quantum states ρ0 and ρ1 has been identified a long time ago by Helström [3]. We consider the two hypotheses H0 and H1 that a given quantum system is prepared either in the state ρ0 or in the state ρ1 , respectively. Since the (quantum) Chernoff b ...
... The optimal error probability of discriminating two quantum states ρ0 and ρ1 has been identified a long time ago by Helström [3]. We consider the two hypotheses H0 and H1 that a given quantum system is prepared either in the state ρ0 or in the state ρ1 , respectively. Since the (quantum) Chernoff b ...
Occam`s Quantum Strop: Synchronizing and
... cryptic processes for which E Cµ [5]. The structural mechanism behind this difference is characterized by the cryptic order : the minimum k for which H[Sk |X0:∞ ] = 0. A related and more familiar property is the Markov order : the smallest R for which H[SR |X0:R ] = 0. Markov order reflects a proc ...
... cryptic processes for which E Cµ [5]. The structural mechanism behind this difference is characterized by the cryptic order : the minimum k for which H[Sk |X0:∞ ] = 0. A related and more familiar property is the Markov order : the smallest R for which H[SR |X0:R ] = 0. Markov order reflects a proc ...
Weak antilocalization and spin relaxation in integrable quantum dots O Z
... be neglected. This regime, which we study in this paper, is formally realized by taking → 0 , while keeping all other quantities finite. This corresponds to the orbital sub. system H0 being in the semiclassical regime, i.e. the typical classical actions S In other words, the Fermi wavelength λF must ...
... be neglected. This regime, which we study in this paper, is formally realized by taking → 0 , while keeping all other quantities finite. This corresponds to the orbital sub. system H0 being in the semiclassical regime, i.e. the typical classical actions S In other words, the Fermi wavelength λF must ...
Orders / Phases of matter
... -local unitary transformations be connected via local unitary transf. lead to product states (what kind of product states?) -all states with short-range entanglement belong to the same phase -symmetry protected topological order / phases belong to this class -examples are 1.) Haldane phase (spin-1-c ...
... -local unitary transformations be connected via local unitary transf. lead to product states (what kind of product states?) -all states with short-range entanglement belong to the same phase -symmetry protected topological order / phases belong to this class -examples are 1.) Haldane phase (spin-1-c ...
PDF
... be determined in (15), whereas there are only 8 independent real parameters in the 3 × 3 density matrix. In contrast, the case of spin s = 1/2 outlined previously does use the minimal set of measurements for such a system. In figure 6 a comparison between the two spin tomography procedures given by ...
... be determined in (15), whereas there are only 8 independent real parameters in the 3 × 3 density matrix. In contrast, the case of spin s = 1/2 outlined previously does use the minimal set of measurements for such a system. In figure 6 a comparison between the two spin tomography procedures given by ...
theoretical physics in crisis
... The understanding of interaction as an exchange of bosons between fermions is a consequence of the mechanical approach to theoretical physics. For example, the electric attraction and repulsion between charged particles are represented by the mutual exchange of virtual photons. As the electrostatic ...
... The understanding of interaction as an exchange of bosons between fermions is a consequence of the mechanical approach to theoretical physics. For example, the electric attraction and repulsion between charged particles are represented by the mutual exchange of virtual photons. As the electrostatic ...
Massive two-loop Bhabha Scattering --- the - Indico
... Systems are described by the set of possible states in which they may be found Bound states are labeled by a set of quantum numbers, that define the various conserved quantities associated with the state A label is a pure number, that counts discrete quantities such as electric charge, energy, ...
... Systems are described by the set of possible states in which they may be found Bound states are labeled by a set of quantum numbers, that define the various conserved quantities associated with the state A label is a pure number, that counts discrete quantities such as electric charge, energy, ...
Predictions For Cooling A Solid To Its Ground State
... advance is to prove that both parts of (1.3) are false. To prove the claims made above, we reexamine the details of the derivation of formula (1.2). There are two standard methods to derive (1.2). We follow the micro canonical ensemble approach [9, 13], since it is based on standard statistical mech ...
... advance is to prove that both parts of (1.3) are false. To prove the claims made above, we reexamine the details of the derivation of formula (1.2). There are two standard methods to derive (1.2). We follow the micro canonical ensemble approach [9, 13], since it is based on standard statistical mech ...
Training Atoms - Max-Planck
... like hundreds of thousands of other luminous atoms there, all radiating light waves in exactly the same rhythm,” says Rempe. This chain of virtual blinking quantum lights animates the atom to emit its photon precisely along this chain. This allows the Garching-based physicists to systematically find ...
... like hundreds of thousands of other luminous atoms there, all radiating light waves in exactly the same rhythm,” says Rempe. This chain of virtual blinking quantum lights animates the atom to emit its photon precisely along this chain. This allows the Garching-based physicists to systematically find ...
Full Text - International Press of Boston
... pseudo-manifold cobordism in the usual sense. For simplicity, we shall also use {αi }, {βj } to denote the pseudo-manifolds representing these homology classes. Then we can choose a generic almost complex structure J and a generic inhomogeneous term ν such that there are only finitely many (J, ν)-per ...
... pseudo-manifold cobordism in the usual sense. For simplicity, we shall also use {αi }, {βj } to denote the pseudo-manifolds representing these homology classes. Then we can choose a generic almost complex structure J and a generic inhomogeneous term ν such that there are only finitely many (J, ν)-per ...
PDF - at www.arxiv.org.
... more practical encoding of qubits with long-lived coherence. It could be single impurity or vacancy centers in solids [2] but their interaction with electromagnetic radiation is rather weak. So, here, ensembles of atoms were proposed for the qubit encoding by using the dipole blockade mechanism in o ...
... more practical encoding of qubits with long-lived coherence. It could be single impurity or vacancy centers in solids [2] but their interaction with electromagnetic radiation is rather weak. So, here, ensembles of atoms were proposed for the qubit encoding by using the dipole blockade mechanism in o ...
preskill-ARO-2013 - Caltech Particle Theory
... For reliable quantum computing, we need not just very stable qubits, but also the ability to apply very accurate nontrivial quantum gates to the qubits. Accurate (Clifford group) phase gates can be applied to 0-Pi qubits by turning on and off the coupling between a qubit (or pair of qubits) and a ha ...
... For reliable quantum computing, we need not just very stable qubits, but also the ability to apply very accurate nontrivial quantum gates to the qubits. Accurate (Clifford group) phase gates can be applied to 0-Pi qubits by turning on and off the coupling between a qubit (or pair of qubits) and a ha ...
