Quantum information processing with atoms and ions
... The ions stored and laser cooled in an electromagnetic trap can be described in terms of a set of external and internal degrees of freedom. The first ones are closely related to the center of mass motion of each ion, whereas the second ones are related to the motion of electrons within each atom, as ...
... The ions stored and laser cooled in an electromagnetic trap can be described in terms of a set of external and internal degrees of freedom. The first ones are closely related to the center of mass motion of each ion, whereas the second ones are related to the motion of electrons within each atom, as ...
Quantum Criticality and Black Holes
... Observation of 3 → 2 low energy modes, emergence of new longitudinal mode in Néel phase, and vanishing of Néel temperature at the quantum critical point ...
... Observation of 3 → 2 low energy modes, emergence of new longitudinal mode in Néel phase, and vanishing of Néel temperature at the quantum critical point ...
Isoqualitative Gauge Curvature at Multiple Scales: A Response to
... measured with a high degree of exactitude, then the precision with which other observables in that mutually incompatible set can be simultaneously assayed experimentally will be compromised. Both of the above uniquely postclassical effects exerted by operators on quantitative features of experimenta ...
... measured with a high degree of exactitude, then the precision with which other observables in that mutually incompatible set can be simultaneously assayed experimentally will be compromised. Both of the above uniquely postclassical effects exerted by operators on quantitative features of experimenta ...
QUANTUM DOTS - Electrical and Computer Engineering
... TWO ELECTRONS, EACH FREE TO TUNNEL TO ANY SITE IN THE CELL, THESE ELECTRONS WILL TRY TO OCCUPY THE FURTHEST POSSIBLE SITE WITH RESPECT TO EACH OTHER DUE TO MUTUALELECTROSTATIC REPULSION. THEREFORE, TWO DISTINGUISHABLE CELL STATES EXIST. 2) SHOWS THE TWO POSSIBLE MINIMUM ENERGY STATES OF A QUANTUM-DO ...
... TWO ELECTRONS, EACH FREE TO TUNNEL TO ANY SITE IN THE CELL, THESE ELECTRONS WILL TRY TO OCCUPY THE FURTHEST POSSIBLE SITE WITH RESPECT TO EACH OTHER DUE TO MUTUALELECTROSTATIC REPULSION. THEREFORE, TWO DISTINGUISHABLE CELL STATES EXIST. 2) SHOWS THE TWO POSSIBLE MINIMUM ENERGY STATES OF A QUANTUM-DO ...
Quantum Query Lower Bounds: The Adversary Method
... calls, and then measure at the end, and then use the measurement to determine our answer. Since all quantum operations are unitary, we can collapse any number of intermediate quantum gates into one big unitary transformation. The super high level idea of the adversary method is to show that each cal ...
... calls, and then measure at the end, and then use the measurement to determine our answer. Since all quantum operations are unitary, we can collapse any number of intermediate quantum gates into one big unitary transformation. The super high level idea of the adversary method is to show that each cal ...
Quantum Strategies V 82, N 5
... U121 U221 , which is unitary since U1 and U2 are. Similarly, suppose U3 U2 U1 jHl fi jT l. Then P can improve his expected payoff (to 1) by changing his strategy, replacing U2 with U321 FU121 , which is unitary since each of U1 , U3 , and F is. Since U3 U2 U1 jHl cannot equal both jHl and jT l, at l ...
... U121 U221 , which is unitary since U1 and U2 are. Similarly, suppose U3 U2 U1 jHl fi jT l. Then P can improve his expected payoff (to 1) by changing his strategy, replacing U2 with U321 FU121 , which is unitary since each of U1 , U3 , and F is. Since U3 U2 U1 jHl cannot equal both jHl and jT l, at l ...
Eavesdropping of two-way coherent-state quantum cryptography via gaussian quantum cloning machines
... In the case of a noiseless channel between Alice and Bob, the only noise in the whole process is introduced by the heterodyne detection. This measurement can be seen as a further Gaussian additive channel at Bob’s site, which(9) gives a Gaussian noise equal to 1 for each quadrature. Thus, according ...
... In the case of a noiseless channel between Alice and Bob, the only noise in the whole process is introduced by the heterodyne detection. This measurement can be seen as a further Gaussian additive channel at Bob’s site, which(9) gives a Gaussian noise equal to 1 for each quadrature. Thus, according ...