Heisenberg (and Schrödinger, and Pauli) on Hidden - Hal-SHS
... http://www.alberteinstein.info/db/ViewDetails.do?DocumentID=34338 . See also Belousek (1996) and Holland (2005). ...
... http://www.alberteinstein.info/db/ViewDetails.do?DocumentID=34338 . See also Belousek (1996) and Holland (2005). ...
Transformations of Entangled Mixed States of Two Qubits
... of quantum mechanics which cannot be described classically[2]. After Bell, quantum correlations and non-locality associated with entanglement have been considered as the singlemost important feature of quantum mechanics that distinguishes it from the classical theories[3-9]. On the other hand, entan ...
... of quantum mechanics which cannot be described classically[2]. After Bell, quantum correlations and non-locality associated with entanglement have been considered as the singlemost important feature of quantum mechanics that distinguishes it from the classical theories[3-9]. On the other hand, entan ...
Quantum Databases
... allocation as late as possible. Usually, requests for resources arrive over time from different users and the system has no knowledge of the future request sequence. Allocating a resource too early may prevent other requests from being fulfilled; for example, if a traveler – Mickey – who does not ca ...
... allocation as late as possible. Usually, requests for resources arrive over time from different users and the system has no knowledge of the future request sequence. Allocating a resource too early may prevent other requests from being fulfilled; for example, if a traveler – Mickey – who does not ca ...
Ultracold atoms in optical lattices generated by quantized light fields
... the basis of our further considerations. It is, however, still much too complex for a general solution and we will have to make further simplifying assumptions. Hence at this point we will restrict ourselves to 1D motion along the cavity axis. In an experimental setup this could be actually realized ...
... the basis of our further considerations. It is, however, still much too complex for a general solution and we will have to make further simplifying assumptions. Hence at this point we will restrict ourselves to 1D motion along the cavity axis. In an experimental setup this could be actually realized ...
Optics and Quantum Electronics
... attributes the pulse shaping to the soliton formation process in the fiber. Filtering and the artificial saturable absorber (APM action) are only small perturbations in the final pulse shaping process. Their main function is to initiate the pulse forming process and suppress build-up of cw radiation ...
... attributes the pulse shaping to the soliton formation process in the fiber. Filtering and the artificial saturable absorber (APM action) are only small perturbations in the final pulse shaping process. Their main function is to initiate the pulse forming process and suppress build-up of cw radiation ...
Continuous Variable Quantum Information: Gaussian States and
... with a variety of quantum hardware, and entered a stage of commercial exploitation [6]. The time seems ripe for selected quantum computing devices to live up to their high expectations [7]. Traditionally, two main approaches to quantum information processing have been pursued. On one hand, a “digita ...
... with a variety of quantum hardware, and entered a stage of commercial exploitation [6]. The time seems ripe for selected quantum computing devices to live up to their high expectations [7]. Traditionally, two main approaches to quantum information processing have been pursued. On one hand, a “digita ...
Two-resonator circuit quantum electrodynamics: Dissipative theory
... type, but also on the operating point. So far,30–34 they have been in the range of approximately 1–200 MHz. In the case of the quantum switch, only qualitative estimates on the effect of qubit dephasing exist.27 However, a detailed quantitative understanding of the possible effects stemming from the ...
... type, but also on the operating point. So far,30–34 they have been in the range of approximately 1–200 MHz. In the case of the quantum switch, only qualitative estimates on the effect of qubit dephasing exist.27 However, a detailed quantitative understanding of the possible effects stemming from the ...
The fuzzball paradigm for black holes: FAQ
... scale tevap ≫ GM. (We will come back to this in more detail later.) We now see why the information paradox is so robust. Even if we do not know anything about our theory of quantum gravity, we would traditionally accept the conditions (a) and (b) listed above as being natural. In that case we would ...
... scale tevap ≫ GM. (We will come back to this in more detail later.) We now see why the information paradox is so robust. Even if we do not know anything about our theory of quantum gravity, we would traditionally accept the conditions (a) and (b) listed above as being natural. In that case we would ...
On the Distribution of the Wave Function for Systems in Thermal
... here a novel probability distribution, to be associated with any thermal ensemble such as the canonical ensemble. While probability distributions on wave functions are natural objects of study in many contexts, from quantum chaos [3, 12, 23] to open quantum systems [4], our main motivation for consi ...
... here a novel probability distribution, to be associated with any thermal ensemble such as the canonical ensemble. While probability distributions on wave functions are natural objects of study in many contexts, from quantum chaos [3, 12, 23] to open quantum systems [4], our main motivation for consi ...
ABSTRACT Title of Document:
... the “second tradition”. There is also a third tradition (perhaps more of a sub-tradition of the second), going back to at least Quine2, which is a kind of middle-ground between the first and the second traditions—between the linguistic analyticity of the Anglo-American schools of the twentieth centu ...
... the “second tradition”. There is also a third tradition (perhaps more of a sub-tradition of the second), going back to at least Quine2, which is a kind of middle-ground between the first and the second traditions—between the linguistic analyticity of the Anglo-American schools of the twentieth centu ...
Bulk Locality and Quantum Error Correction in AdS/CFT arXiv
... observables are of interest; these were also advocated in [15] in the context of describing the black hole interior. Aspects of our proposal are inspired by their construction, but here we do not discuss black hole interiors and we are not violating quantum mechanics [16]. A connection between black ...
... observables are of interest; these were also advocated in [15] in the context of describing the black hole interior. Aspects of our proposal are inspired by their construction, but here we do not discuss black hole interiors and we are not violating quantum mechanics [16]. A connection between black ...
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.