Categorical Models for Quantum Computing
... in [1] as a mathematical model for quantum theory. This is an alternative to, and a generalisations of, the Hilbert space model. Together with their colleagues, they have extended this to a versatile framework for quantum computing. Recently, Jamie Vicary has proposed an alternative framework in ter ...
... in [1] as a mathematical model for quantum theory. This is an alternative to, and a generalisations of, the Hilbert space model. Together with their colleagues, they have extended this to a versatile framework for quantum computing. Recently, Jamie Vicary has proposed an alternative framework in ter ...
AO04703247251
... The addition of two binary numbers is the important and most frequently used arithmetic process on microprocessors, digital signal processors (DSP), and data-processing application-specific integrated circuits (ASIC). Therefore, binary adders are critical structure blocks in very large-scale integra ...
... The addition of two binary numbers is the important and most frequently used arithmetic process on microprocessors, digital signal processors (DSP), and data-processing application-specific integrated circuits (ASIC). Therefore, binary adders are critical structure blocks in very large-scale integra ...
Interpreting Quantum Mechanics in Terms of - Philsci
... know what physical state the wave function of a quantum system describes, we need to measure the system in the first place, while the measuring process and the measurement result are necessarily determined by the evolution law for the wave function. Fortunately, it has been realized that the conven ...
... know what physical state the wave function of a quantum system describes, we need to measure the system in the first place, while the measuring process and the measurement result are necessarily determined by the evolution law for the wave function. Fortunately, it has been realized that the conven ...
Ultrafast Spectroscopy of Atomic and Molecular Quantum Dynamics Pia Johansson
... where the ck coefficients describe the excitation of the molecule from the initial state and can be determined by first order perturbation theory, and the sum ranges over k such that all stationary states excited by the ultrashort pulse are included [2]. This superposition of stationary eigenstates ...
... where the ck coefficients describe the excitation of the molecule from the initial state and can be determined by first order perturbation theory, and the sum ranges over k such that all stationary states excited by the ultrashort pulse are included [2]. This superposition of stationary eigenstates ...
ipSecMicrosof
... IPSec is based on an end-to-end security model that establishes trust and security from a source IP to a destination IP address. Any computers that only route data from source to destination are not required to support IPSec, unless firewall-type packet filtering or network address translation (NAT ...
... IPSec is based on an end-to-end security model that establishes trust and security from a source IP to a destination IP address. Any computers that only route data from source to destination are not required to support IPSec, unless firewall-type packet filtering or network address translation (NAT ...
Entropy and Quantum Gravity arXiv:1504.00882v2 [gr
... Thus we have a plausible explanation for the Second Law for a general closed system. Applied to our collapsing star closed system, and bearing in mind that information may be defined as negative entropy, this specializes to a (non-paradoxical) explanation of how information is lost in black-hole col ...
... Thus we have a plausible explanation for the Second Law for a general closed system. Applied to our collapsing star closed system, and bearing in mind that information may be defined as negative entropy, this specializes to a (non-paradoxical) explanation of how information is lost in black-hole col ...
2-dimensional “particle-in-a-box” problems
... debate—in which Born and Einstein took the one-dimensional particle-in-a-box problem as their theoretical “laboratory”—was published in ,11 and came at that time to my attention. I learned that Wolfgang Pauli had been apprised of the substance of the debate, and in December of had written t ...
... debate—in which Born and Einstein took the one-dimensional particle-in-a-box problem as their theoretical “laboratory”—was published in ,11 and came at that time to my attention. I learned that Wolfgang Pauli had been apprised of the substance of the debate, and in December of had written t ...
Entanglement Theory and the Quantum
... life easier and my time at work more alive, I would like to thank Eileen Boyce. My studies on quantum information started already in my undergraduate and master studies at Universidade Federal of Minas Gerais. I am grateful to Reinaldo Vianna for getting me started in this exciting field and several ...
... life easier and my time at work more alive, I would like to thank Eileen Boyce. My studies on quantum information started already in my undergraduate and master studies at Universidade Federal of Minas Gerais. I am grateful to Reinaldo Vianna for getting me started in this exciting field and several ...
Correlations in multipartite systems: From entanglement to localization Julia Stasi ´nska
... data, the only requirement is that the shared correlations are sufficiently strong to enable a given task. The strength of classical correlations is subject to certain constraints, commonly known as Bell inequalities. Violation of these inequalities is the manifestation of non-locality—displayed, in ...
... data, the only requirement is that the shared correlations are sufficiently strong to enable a given task. The strength of classical correlations is subject to certain constraints, commonly known as Bell inequalities. Violation of these inequalities is the manifestation of non-locality—displayed, in ...
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.