Closed timelike curves make quantum and classical computing equivalent
... For convenience, we assume that the causality-respecting register RCR is initialized to 0q(n). The CTC register, on the other hand, must be initialized to some probability distribution over p(n)-bit strings that will ensure causal consistency. More formally, let D be a probability distribution over ...
... For convenience, we assume that the causality-respecting register RCR is initialized to 0q(n). The CTC register, on the other hand, must be initialized to some probability distribution over p(n)-bit strings that will ensure causal consistency. More formally, let D be a probability distribution over ...
Optimum phase-shift estimation and the quantum description of the
... Given the relevance of this variable in classical terms there have been several attempts to provide a suitable translation into the framework of Hilbert space formalism @2#. Although this is still a controversial subject, recently significant progress has been made in unifying all different approach ...
... Given the relevance of this variable in classical terms there have been several attempts to provide a suitable translation into the framework of Hilbert space formalism @2#. Although this is still a controversial subject, recently significant progress has been made in unifying all different approach ...
For ULSI workshop. OUR SLIDES not ready. In PPT format.
... Qubit Quantum logic gate Unitary matrix Binary quantum gates process qubits which can have either a |0> or |1> or both |0> and |1> at the same time to varying extents and hence exhibit a superposition state |0>+|> where ||2 + ||2 = 1, • and are complex numbers such that measurement probabili ...
... Qubit Quantum logic gate Unitary matrix Binary quantum gates process qubits which can have either a |0> or |1> or both |0> and |1> at the same time to varying extents and hence exhibit a superposition state |0>+|> where ||2 + ||2 = 1, • and are complex numbers such that measurement probabili ...
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... Lie algebroid, or globally in terms of a special Lie (or Lie–Weinstein) symmetry groupoid representations that can also take into account the spin exchange interactions between the Jahn–Teller centers exhibiting such quantum dynamic effects. Unlike the simple symmetries expressed by group representa ...
... Lie algebroid, or globally in terms of a special Lie (or Lie–Weinstein) symmetry groupoid representations that can also take into account the spin exchange interactions between the Jahn–Teller centers exhibiting such quantum dynamic effects. Unlike the simple symmetries expressed by group representa ...
Universally valid reformulation of the Heisenberg uncertainty
... The above relation shows that the Heisenberg noisedisturbance uncertainty relation, Eq. 共2兲, holds if the correlation term 兩 具 关 N(A),B in 兴 典 ⫹ 具 关 A in ,D(B) 兴 典 兩 vanishes. In order to characterize a class of measurements satisfying Eq. 共2兲, we introduce the following definition. The measuring in ...
... The above relation shows that the Heisenberg noisedisturbance uncertainty relation, Eq. 共2兲, holds if the correlation term 兩 具 关 N(A),B in 兴 典 ⫹ 具 关 A in ,D(B) 兴 典 兩 vanishes. In order to characterize a class of measurements satisfying Eq. 共2兲, we introduce the following definition. The measuring in ...
Mathematical Formulation of the Superposition Principle
... Vectors have this property. In real three dimensional space, three basis vectors are sufficient to describe any point in space. Can combine three vectors to get new bases vectors, which are also O.K. under appropriate combination rules. In Q. M., may have many more than three states. Need one vector ...
... Vectors have this property. In real three dimensional space, three basis vectors are sufficient to describe any point in space. Can combine three vectors to get new bases vectors, which are also O.K. under appropriate combination rules. In Q. M., may have many more than three states. Need one vector ...
Classical Physics versus Quantum Physics: An Overview
... objects lies an exotic shadow world of potentiality and uncertainty. This world, as we will see, defiessimple description since its foundations are so different from our everyday experience. The transition from the microworldto the macroworld, i.e., how the macro world emerges from the microcworld, ...
... objects lies an exotic shadow world of potentiality and uncertainty. This world, as we will see, defiessimple description since its foundations are so different from our everyday experience. The transition from the microworldto the macroworld, i.e., how the macro world emerges from the microcworld, ...
Strongly correlated phenomena in cavity QED
... managed to overcome the previous difficulty by using a quantum trick: • Suppose there are only two witnesses { 1 , 2 } acceptance probability bigger than 2/3 (all other having acceptance prob. < 1/3) ...
... managed to overcome the previous difficulty by using a quantum trick: • Suppose there are only two witnesses { 1 , 2 } acceptance probability bigger than 2/3 (all other having acceptance prob. < 1/3) ...
SUPERCONDUCTING QUBITS II: DECOHERENCE F.K. Wilhelm , M.J. Storcz and U. Hartmann
... of the observable Q close to thermal equilibrium by its two-point correlation function alone. This is a manifestation of the fact that its distribution, following the central limit theorem is Gaussian, i.e. can be characterized by two numbers only: mean and standard deviation. Oscillator baths provi ...
... of the observable Q close to thermal equilibrium by its two-point correlation function alone. This is a manifestation of the fact that its distribution, following the central limit theorem is Gaussian, i.e. can be characterized by two numbers only: mean and standard deviation. Oscillator baths provi ...
Quantum Chaos
... What are the appropriate quantum observables to detect the regular or chaotic classical behaviour of the system? More precisely, how does the regular or chaotic classical behaviour translate in the energy levels and eigenstates of the (bound) system? For an open system, in the decay rates, in the ...
... What are the appropriate quantum observables to detect the regular or chaotic classical behaviour of the system? More precisely, how does the regular or chaotic classical behaviour translate in the energy levels and eigenstates of the (bound) system? For an open system, in the decay rates, in the ...