Midgap states of a two-dimensional antiferromagnetic Mott
... Fig. 1. – a) The 2-d analog of the domain wall is a meron texture depicted as a lotus flower configuration of the local director field n̂(r). We associate a unit cell of four sites with local moments aligned antiferromagnetically with each n̂(r). Each plaquette exhibits a spin-flux of π (T 12 T 23 T ...
... Fig. 1. – a) The 2-d analog of the domain wall is a meron texture depicted as a lotus flower configuration of the local director field n̂(r). We associate a unit cell of four sites with local moments aligned antiferromagnetically with each n̂(r). Each plaquette exhibits a spin-flux of π (T 12 T 23 T ...
generalized numerical ranges and quantum error correction
... see [11] and its references. For instance, Λ1 (A) is always convex if m ≤ 3 unless (dim H, m) = (2, 3); If (dim H, m) = (2, 3) or n > 1, m ≥ 4, there are examples A ∈ S(H)m such that Λ1 (A) is not convex. Furthermore, for any A1 , A2 , A3 ∈ S(H) such that span { I, A1 , A2 , A3 } has dimension 4, th ...
... see [11] and its references. For instance, Λ1 (A) is always convex if m ≤ 3 unless (dim H, m) = (2, 3); If (dim H, m) = (2, 3) or n > 1, m ≥ 4, there are examples A ∈ S(H)m such that Λ1 (A) is not convex. Furthermore, for any A1 , A2 , A3 ∈ S(H) such that span { I, A1 , A2 , A3 } has dimension 4, th ...
The Classical Lamb Shift: Why Jackson is Wrong!
... formalism, it can be shown that the covariant classical version of Barut’s self-field formalism is fully equivalent to covariant, relativistic classical electrodynamics. ( 6 ) As a final point, one might ask why this relativistic but classical treatment does not give a result that is better than the ...
... formalism, it can be shown that the covariant classical version of Barut’s self-field formalism is fully equivalent to covariant, relativistic classical electrodynamics. ( 6 ) As a final point, one might ask why this relativistic but classical treatment does not give a result that is better than the ...
Studying Quantum Field Theory
... that of a free massless field). The attention towards theories with higher conservation laws stimulated a renewed interest in the study of conformal 3-point functions of conserved (tensor) currents (see an important early contribution by Stanev [S88], demonstrating that the general 3-point function ...
... that of a free massless field). The attention towards theories with higher conservation laws stimulated a renewed interest in the study of conformal 3-point functions of conserved (tensor) currents (see an important early contribution by Stanev [S88], demonstrating that the general 3-point function ...
Quantum electrical transport in samples of limited
... 2~a! is an example of the relevant observations published in 1988 by two groups, one at the Phillips Research Laboratories2 and one at the Cavendish Laboratory in Cambridge.3 In these measurements, there is no magnetic field applied. Figure 2~b! sketches the experimental arrangement needed to genera ...
... 2~a! is an example of the relevant observations published in 1988 by two groups, one at the Phillips Research Laboratories2 and one at the Cavendish Laboratory in Cambridge.3 In these measurements, there is no magnetic field applied. Figure 2~b! sketches the experimental arrangement needed to genera ...
Computing with Highly Mixed States
... —A quantum register which is initialized to some pure state |ψ0 , or more generally, to some density matrix ρ0 . —The quantum algorithm is executed by performing a sequence of elementary gates on this quantum register. Each such gate is a unitary transformation that acts as the identity on all but ...
... —A quantum register which is initialized to some pure state |ψ0 , or more generally, to some density matrix ρ0 . —The quantum algorithm is executed by performing a sequence of elementary gates on this quantum register. Each such gate is a unitary transformation that acts as the identity on all but ...
- D-Wave Systems
... After the subQUBO is solved, the current solution is updated with the appropriate bits from the subQUBO solution vector. The goal is that the new candidate solution, built from the prior candidate solution and updates from the subQUBO results (line 19), will jump out of a local minimum. This new Qtm ...
... After the subQUBO is solved, the current solution is updated with the appropriate bits from the subQUBO solution vector. The goal is that the new candidate solution, built from the prior candidate solution and updates from the subQUBO results (line 19), will jump out of a local minimum. This new Qtm ...
Coherent manipulations of charge-number states in a Cooper-pair box Y. Nakamura,
... define charge-number states with |n where n is a number of excess Cooper pairs in the right electrode. Because of the conservation of the total charge, the left electrode has (−n) excess Cooper pairs. The chargenumber states are the ground state of the two superconductors with such a particular char ...
... define charge-number states with |n where n is a number of excess Cooper pairs in the right electrode. Because of the conservation of the total charge, the left electrode has (−n) excess Cooper pairs. The chargenumber states are the ground state of the two superconductors with such a particular char ...
Centre for Logic and Philosophy of Science
... This is the general form of Heisenberg’s uncertainty relations for position and momentum. Remark that only at this point one could unhesitatingly speak about position and momentum, physical quantities which had disappeared in Heisenberg’s original 1925 paper. In the meantime these concepts had alrea ...
... This is the general form of Heisenberg’s uncertainty relations for position and momentum. Remark that only at this point one could unhesitatingly speak about position and momentum, physical quantities which had disappeared in Heisenberg’s original 1925 paper. In the meantime these concepts had alrea ...
Automated Design of Quantum Circuits - vlsicad page
... simultaneously, whose ’evolution’ paths may interact with each other. In particular, they may trade substructures in an operation called “crossover”, in analogy to sexual reproduction. The method is heavily stochastic, sometimes performing random perturbations on solution candidates (“mutations”), a ...
... simultaneously, whose ’evolution’ paths may interact with each other. In particular, they may trade substructures in an operation called “crossover”, in analogy to sexual reproduction. The method is heavily stochastic, sometimes performing random perturbations on solution candidates (“mutations”), a ...
MULTIPARTICLE ENTANGLEMENT Sebastian Hartweg, Mario Berta (QSIT Seminar, 10.12.2012)
... beams9. Most of the basic ingredients for QIP10 have been demonstrated separately in the last few years in this system. Furthermore, some simple algorithms that could serve as primitives for larger scale QIP, including quantum error correction, teleportation, and the ...
... beams9. Most of the basic ingredients for QIP10 have been demonstrated separately in the last few years in this system. Furthermore, some simple algorithms that could serve as primitives for larger scale QIP, including quantum error correction, teleportation, and the ...
quantum computation of the jones polynomial - Unicam
... The crossing number c(K) of a link K is the minimum number of crossings of any diagram D, considered up to isotopy. Being the minimum among all ...
... The crossing number c(K) of a link K is the minimum number of crossings of any diagram D, considered up to isotopy. Being the minimum among all ...
Quantum Gravity : Motivations and Alternatives 1
... such a quantization strategy is that the resulting quantum theory has a classical limit that is (at least approximately, and up to the known phenomenology) identical to General Relativity. However, should gravity not be a fundamental, but an induced, residual, emergent interaction, it could very wel ...
... such a quantization strategy is that the resulting quantum theory has a classical limit that is (at least approximately, and up to the known phenomenology) identical to General Relativity. However, should gravity not be a fundamental, but an induced, residual, emergent interaction, it could very wel ...
Measurement-based and Universal Blind Quantum Computation
... conjugation by Pauli operators and the entanglement command belongs to the normaliser of the Pauli group. This calculus is sound in that it preserves the interpretation of patterns. Most importantly, one can derive from it a simple algorithm (called standardisation) by which any general pattern can ...
... conjugation by Pauli operators and the entanglement command belongs to the normaliser of the Pauli group. This calculus is sound in that it preserves the interpretation of patterns. Most importantly, one can derive from it a simple algorithm (called standardisation) by which any general pattern can ...