Phys. Rev. Lett. 99, 200404 - Harvard Condensed Matter Theory group
... intrachain hopping J 1 to realize a system with moderate value of K far from the Mott state. At time t 0 the interchain hopping J? was abruptly decreased from a very large value to J? 0:1. Despite seemingly small size we point out that this system contains more than 106 states, which is more t ...
... intrachain hopping J 1 to realize a system with moderate value of K far from the Mott state. At time t 0 the interchain hopping J? was abruptly decreased from a very large value to J? 0:1. Despite seemingly small size we point out that this system contains more than 106 states, which is more t ...
A purification postulate for quantum mechanics with indefinite causal
... These processes have been shown to enable the realization of tasks that are otherwise impossible: they allow for the violation of causal inequalities [1, 3–8], can be detected by causal witnesses [9], provide an advantage in quantum computation [10–12], and enable a reduction in communication comple ...
... These processes have been shown to enable the realization of tasks that are otherwise impossible: they allow for the violation of causal inequalities [1, 3–8], can be detected by causal witnesses [9], provide an advantage in quantum computation [10–12], and enable a reduction in communication comple ...
The Black Hole Information Paradox and the Collapse of the Wave
... apparent information loss, reflected at the quantum level by the fact that an initially pure state evolves, as far as exterior observers are concerned, into a mixed state. The idea is that, if we want to deal with regions where our theories are valid, we need to include an extra boundary of space-ti ...
... apparent information loss, reflected at the quantum level by the fact that an initially pure state evolves, as far as exterior observers are concerned, into a mixed state. The idea is that, if we want to deal with regions where our theories are valid, we need to include an extra boundary of space-ti ...
(2+ 1)-Dimensional Chern-Simons Gravity as a Dirac Square Root
... any holonomy group arising from a solution of the Einstein equations must be Fuchsian. This condition picks out a connected component in the space of holonomy groups, and Mess [11] has shown that any group lying in this component corresponds to a solution of the field equations. (See also [12] for ...
... any holonomy group arising from a solution of the Einstein equations must be Fuchsian. This condition picks out a connected component in the space of holonomy groups, and Mess [11] has shown that any group lying in this component corresponds to a solution of the field equations. (See also [12] for ...
Quantum Computation and Algorithms
... A single qubit can be represented as |ψi = a |0i + b |1i in the computational basis, that is parametrized by by two complex number satisfying |a|2 + |b|2 = 1.. Operation on a qubit must preserve the norm the state as per the requirement of quantum mechanics. This implies our operators must be 2 × 2 ...
... A single qubit can be represented as |ψi = a |0i + b |1i in the computational basis, that is parametrized by by two complex number satisfying |a|2 + |b|2 = 1.. Operation on a qubit must preserve the norm the state as per the requirement of quantum mechanics. This implies our operators must be 2 × 2 ...
Superconducting Circuits and Quantum Computation
... and/or charge states are analogous to the quantized internal levels of an atom. This SQC-atom analogy can be extended to the quantum optical effects associated with atoms, such as electromagnetically induced transparency (EIT) [2, 6]. The three-level Λ-system for our S-EIT system (Fig.1a) is a stand ...
... and/or charge states are analogous to the quantized internal levels of an atom. This SQC-atom analogy can be extended to the quantum optical effects associated with atoms, such as electromagnetically induced transparency (EIT) [2, 6]. The three-level Λ-system for our S-EIT system (Fig.1a) is a stand ...
Electronic Shells of Dirac Fermions in Graphene Quantum Rings in
... being a zero-gap semiconductor much effort is directed toward engineering gap in electronic spectrum of graphene by controlling its lateral size and shape [6]. In this approach edges of graphene nanoislands play an important role. The edge states are also associated with the possibility of magnetism ...
... being a zero-gap semiconductor much effort is directed toward engineering gap in electronic spectrum of graphene by controlling its lateral size and shape [6]. In this approach edges of graphene nanoislands play an important role. The edge states are also associated with the possibility of magnetism ...
Propensities in Quantum Mechanics - Philsci
... The challenge is then to predict theoretically that in this state the macroscopic measurement device pointer will point to some value or other (sometimes known as the problem of objectification of the pointer position). This is compounded by the fact that, on the standard interpretational rule for q ...
... The challenge is then to predict theoretically that in this state the macroscopic measurement device pointer will point to some value or other (sometimes known as the problem of objectification of the pointer position). This is compounded by the fact that, on the standard interpretational rule for q ...
Three Quantum Algorithms to Solve 3-SAT
... n–registers can be represented as order 2n square matrices of complex entries. Usually (but not in this paper) such operators, as well as the corresponding matrices, are required to be unitary. In particular, this implies that the implemented operations are logically reversible (an operation is logi ...
... n–registers can be represented as order 2n square matrices of complex entries. Usually (but not in this paper) such operators, as well as the corresponding matrices, are required to be unitary. In particular, this implies that the implemented operations are logically reversible (an operation is logi ...
Variational principle in the conservation operators deduction
... Neither coordinate nor momentum (i.e. impulse) presented is suitable in our case. (Indeed, the coordinate presented psi-function must give us the coordinate presented conservation operators. But any conservation operator does not commute with coordinate operator. It means that any conservation val ...
... Neither coordinate nor momentum (i.e. impulse) presented is suitable in our case. (Indeed, the coordinate presented psi-function must give us the coordinate presented conservation operators. But any conservation operator does not commute with coordinate operator. It means that any conservation val ...
Non-contextual inequalities and dimensionality Johan Ahrens
... of contextuality, locality, and realism. I will also, mostly as a curiosity, show some connections between graphs and non-contextual inequalities. ...
... of contextuality, locality, and realism. I will also, mostly as a curiosity, show some connections between graphs and non-contextual inequalities. ...
