For ULSI workshop. OUR SLIDES not ready. In PPT format.
... By iteratively applying the same input test vector (a probabilistic test) we are calculating the probability of getting the observed output. The input vectors are always vectors of pure states. Each successive iteration reduces the probability of obtaining a correct measurement for a faulty circuit. ...
... By iteratively applying the same input test vector (a probabilistic test) we are calculating the probability of getting the observed output. The input vectors are always vectors of pure states. Each successive iteration reduces the probability of obtaining a correct measurement for a faulty circuit. ...
Quantum spin systems from the perspective of quantum
... • The symmetric subspace is spanned by 3 Bell states, and hence this ground state can be used as a perfect quantum repeater • Diverging entanglement length but finite correlation length • LE detects new kind of long range order • Antiferro spin-1 chain is a perfect quantum channel ...
... • The symmetric subspace is spanned by 3 Bell states, and hence this ground state can be used as a perfect quantum repeater • Diverging entanglement length but finite correlation length • LE detects new kind of long range order • Antiferro spin-1 chain is a perfect quantum channel ...
Periodic orbit analysis of molecular vibrational spectra: Spectral
... Our po analysis of the Fermi resonant systems yields two main results. First of all, at the most qualitative level, the quantum ~E,t! plots immediately enable one to distinguish between the spectra computed using two different Hamiltonians, one ‘‘diagonal’’ and the other ‘‘resonant,’’ which were use ...
... Our po analysis of the Fermi resonant systems yields two main results. First of all, at the most qualitative level, the quantum ~E,t! plots immediately enable one to distinguish between the spectra computed using two different Hamiltonians, one ‘‘diagonal’’ and the other ‘‘resonant,’’ which were use ...
A Quantum Algorithm for Finding Minimum Exclusive
... Grover’s algorithm [2]. We propose a special oracle (QMinOracle) as input for Grover’s algorithm, which is based on Theorem 2. In a conventional ESCT (or ESOP) minimization algorithm like XMin6 [8], the main computational overhead comes from the for-loop where the (n − 1)-input variable function is ...
... Grover’s algorithm [2]. We propose a special oracle (QMinOracle) as input for Grover’s algorithm, which is based on Theorem 2. In a conventional ESCT (or ESOP) minimization algorithm like XMin6 [8], the main computational overhead comes from the for-loop where the (n − 1)-input variable function is ...
Quantum phase distribution of thermal phase-squeezed
... under these conditions is negligible. However, for phasesqueezed radiation the effect of thermal noise becomes important for r*1.8. Increasing the squeezing parameter beyond this limit will not improve the phase measurement significantly due to admixture of thermal light. Therefore, the effect of th ...
... under these conditions is negligible. However, for phasesqueezed radiation the effect of thermal noise becomes important for r*1.8. Increasing the squeezing parameter beyond this limit will not improve the phase measurement significantly due to admixture of thermal light. Therefore, the effect of th ...
Exact valence bond entanglement entropy and probability
... basis states. Each basis state corresponds to a pattern of N parentheses and dots, such as () • (())•. The parentheses must obey the typographical rules for nesting, and the dots must not be inside any of the parentheses. These rules imply that the () pairs consist of one even and one odd site, and ...
... basis states. Each basis state corresponds to a pattern of N parentheses and dots, such as () • (())•. The parentheses must obey the typographical rules for nesting, and the dots must not be inside any of the parentheses. These rules imply that the () pairs consist of one even and one odd site, and ...
Generalized Entropies
... However, smooth entropies are generally different from the von Neumann entropy except in special cases. This implies that many operational quantities, characterized by smooth entropies, are not in general accurately described by the von Neumann entropy (e.g. the amount of extractable randomness or t ...
... However, smooth entropies are generally different from the von Neumann entropy except in special cases. This implies that many operational quantities, characterized by smooth entropies, are not in general accurately described by the von Neumann entropy (e.g. the amount of extractable randomness or t ...
What is CPH_Theory - VBN
... structure of photon is an inevitable necessity. Due to this reason, CPH theory has formed based on a definition from the structure of photon. In recent decades, the structure of photon is discussed [1, 2 and 3]. In CPH Theory, description the structure of photon is based on the behavior of photons i ...
... structure of photon is an inevitable necessity. Due to this reason, CPH theory has formed based on a definition from the structure of photon. In recent decades, the structure of photon is discussed [1, 2 and 3]. In CPH Theory, description the structure of photon is based on the behavior of photons i ...
Document
... These 9-qubit code words have the structure of a phase-flip code, but with each qubit in state (|0⟩ ± |1⟩) encoded in a bit-flip code as (|000⟩ ± |111⟩). This type of code—one code nested inside another—is called a concatenated code. This is a very important concept in making quantum computers robus ...
... These 9-qubit code words have the structure of a phase-flip code, but with each qubit in state (|0⟩ ± |1⟩) encoded in a bit-flip code as (|000⟩ ± |111⟩). This type of code—one code nested inside another—is called a concatenated code. This is a very important concept in making quantum computers robus ...
Spin-polarized transport through two quantum dots Interference and Coulomb correlation effects P.
... (pL = pR = p = 0.4), the same intra-dot Coulomb parameters for both dots (U1 = U2 = U), and left-right symmetry of the coupling (γ = 1). We also note that energy in this paper is measured in the units of γ0, and that the numerical results are valid for temperatures above the corresponding Kondo temp ...
... (pL = pR = p = 0.4), the same intra-dot Coulomb parameters for both dots (U1 = U2 = U), and left-right symmetry of the coupling (γ = 1). We also note that energy in this paper is measured in the units of γ0, and that the numerical results are valid for temperatures above the corresponding Kondo temp ...
Quantum key distribution
Quantum key distribution (QKD) uses quantum mechanics to guarantee secure communication. It enables two parties to produce a shared random secret key known only to them, which can then be used to encrypt and decrypt messages. It is often incorrectly called quantum cryptography, as it is the most well known example of the group of quantum cryptographic tasks.An important and unique property of quantum key distribution is the ability of the two communicating users to detect the presence of any third party trying to gain knowledge of the key. This results from a fundamental aspect of quantum mechanics: the process of measuring a quantum system in general disturbs the system. A third party trying to eavesdrop on the key must in some way measure it, thus introducing detectable anomalies. By using quantum superpositions or quantum entanglement and transmitting information in quantum states, a communication system can be implemented which detects eavesdropping. If the level of eavesdropping is below a certain threshold, a key can be produced that is guaranteed to be secure (i.e. the eavesdropper has no information about it), otherwise no secure key is possible and communication is aborted.The security of encryption that uses quantum key distribution relies on the foundations of quantum mechanics, in contrast to traditional public key cryptography which relies on the computational difficulty of certain mathematical functions, and cannot provide any indication of eavesdropping at any point in the communication process, or any mathematical proof as to the actual complexity of reversing the one-way functions used. QKD has provable security based on information theory, and forward secrecy.Quantum key distribution is only used to produce and distribute a key, not to transmit any message data. This key can then be used with any chosen encryption algorithm to encrypt (and decrypt) a message, which can then be transmitted over a standard communication channel. The algorithm most commonly associated with QKD is the one-time pad, as it is provably secure when used with a secret, random key. In real world situations, it is often also used with encryption using symmetric key algorithms like the Advanced Encryption Standard algorithm. In the case of QKD this comparison is based on the assumption of perfect single-photon sources and detectors, that cannot be easily implemented.