De finetti theorems, mean-field limits and bose
... and the 1-body model one arrives at are mathematically well-defined. Let us note that, for interacting quantum particles, the former is always linear, while the latter is always non-linear. Many recent results presented in the sequel are generalizations to the quantum case of better known results of ...
... and the 1-body model one arrives at are mathematically well-defined. Let us note that, for interacting quantum particles, the former is always linear, while the latter is always non-linear. Many recent results presented in the sequel are generalizations to the quantum case of better known results of ...
A multi-pathway model for Photosynthetic reaction center
... and the acceptor molecules interacting with thermal light. State |bi represents the lowest energy configuration in which both donors and acceptor molecules are in the ground state. States |a1 i and |a2 i correspond to single-exciton states in the first and second donors, respectively. |αi is the cha ...
... and the acceptor molecules interacting with thermal light. State |bi represents the lowest energy configuration in which both donors and acceptor molecules are in the ground state. States |a1 i and |a2 i correspond to single-exciton states in the first and second donors, respectively. |αi is the cha ...
Reversible vs. Quantum Computing
... performed in a given time interval while staying within one’s power budget. I have done a detailed analysis which indicates that by the year 2050, 100Watt reversible computers could be 1,000 to 100,000 times faster than the fastest possible 100W irreversible computer, even when the overheads of reve ...
... performed in a given time interval while staying within one’s power budget. I have done a detailed analysis which indicates that by the year 2050, 100Watt reversible computers could be 1,000 to 100,000 times faster than the fastest possible 100W irreversible computer, even when the overheads of reve ...
Deterministic secure direct communication using GHZ states and
... a shared secret key to encrypt them and the message is deterministically sent through the quantum channel, but can be read only after a transmission of an additional classical information for each qubit. Boström and Felbinger [26] put forward a communication scheme, the ”ping-pong protocol”, which ...
... a shared secret key to encrypt them and the message is deterministically sent through the quantum channel, but can be read only after a transmission of an additional classical information for each qubit. Boström and Felbinger [26] put forward a communication scheme, the ”ping-pong protocol”, which ...
Physics Today
... Figure 5. The ground-state configurations of various multielectron atoms, calculated using a Bohr-like model. For both the n = 1 and n = 2 shells, the electron locations (red dots) found from that simplistic model agree closely with the maximum charge densities obtained from standard quantum-theory ...
... Figure 5. The ground-state configurations of various multielectron atoms, calculated using a Bohr-like model. For both the n = 1 and n = 2 shells, the electron locations (red dots) found from that simplistic model agree closely with the maximum charge densities obtained from standard quantum-theory ...
Observing a coherent superposition of an atom and a
... function of . Such Ramsey fringes are the signature of coherent operation, i.e., that the description of the system for the time period between the two / 2 pulses is given by a coherent superposition of 兩g典 and 兩e典. If instead the system was described at this intermediate time by an incoherent su ...
... function of . Such Ramsey fringes are the signature of coherent operation, i.e., that the description of the system for the time period between the two / 2 pulses is given by a coherent superposition of 兩g典 and 兩e典. If instead the system was described at this intermediate time by an incoherent su ...
A unification of photons, electrons, and gravitons under qbit
... A unification of photons, electrons, and gravitons under qbit models ...
... A unification of photons, electrons, and gravitons under qbit models ...
Excited state entanglement - FaMAF
... entanglement near a quantum phase transition [14, 15]. Using the von Neumann entropy as the entanglement measure we found that the spherical helium’s ground-state entanglement is discontinuous at the ionization point. It is well known from critical phenomena theory that the critical exponents of phy ...
... entanglement near a quantum phase transition [14, 15]. Using the von Neumann entropy as the entanglement measure we found that the spherical helium’s ground-state entanglement is discontinuous at the ionization point. It is well known from critical phenomena theory that the critical exponents of phy ...
2-3 The Electric Field Due to one or more Point Charges
... Again, Coulomb’s Law is referred to as an inverse square law because of the way the magnitude of the electric field depends on the distance that the point of interest1 is from the source charge. Now let’s talk about direction. Remember, the electric field at any point in space is a force-percharge-o ...
... Again, Coulomb’s Law is referred to as an inverse square law because of the way the magnitude of the electric field depends on the distance that the point of interest1 is from the source charge. Now let’s talk about direction. Remember, the electric field at any point in space is a force-percharge-o ...
Design of Strongly Modulating Pulses to Implement Precise Effective
... to date have the disadvantage that low power implies long duration. This not only introduces errors due to relaxation, or decoherence, but also allows significant evolution under the action of the internal Hamiltonian. In the past, this evolution was rarely of concern because there was little import ...
... to date have the disadvantage that low power implies long duration. This not only introduces errors due to relaxation, or decoherence, but also allows significant evolution under the action of the internal Hamiltonian. In the past, this evolution was rarely of concern because there was little import ...
January 20, 2004 9:50 WSPC/140-IJMPB 02353
... The aim of this article is to present a simple, pedagogical and unified derivation of the spin current for both models. The derivation of Murakami et al.6,7 emphasizes on the momentum space topology which requires some advanced mathematical knowledge. The semi-classical derivations presented in Refs ...
... The aim of this article is to present a simple, pedagogical and unified derivation of the spin current for both models. The derivation of Murakami et al.6,7 emphasizes on the momentum space topology which requires some advanced mathematical knowledge. The semi-classical derivations presented in Refs ...
Calculated and measured angular correlation between photoelectrons and
... This was something of a puzzle since both electrons were in the regime where the de Broglie wavelength was small compared to the interaction distances. In this paper, we extend the numerical treatment of two electrons developed in [17] to describe this system. Robicheaux [17] described how to solve ...
... This was something of a puzzle since both electrons were in the regime where the de Broglie wavelength was small compared to the interaction distances. In this paper, we extend the numerical treatment of two electrons developed in [17] to describe this system. Robicheaux [17] described how to solve ...
Non-Abelian Anyons and Topological Quantum Computation
... not necessarily come back to the same state. This topological difference between two and three dimensions, first realized by Leinaas and Myrheim, 1977 and by Wilczek, 1982a, leads to a profound difference in the possible quantum mechanical properties, at least as a matter of principle, for quantum s ...
... not necessarily come back to the same state. This topological difference between two and three dimensions, first realized by Leinaas and Myrheim, 1977 and by Wilczek, 1982a, leads to a profound difference in the possible quantum mechanical properties, at least as a matter of principle, for quantum s ...
Abstract Experiments demonstrating entanglement swapping have
... the lesson that quantum states are neither descriptions nor representations of physical reality. In particular, it undermines the idea that ascribing an entangled state to quantum systems is a way of representing some new, non-classical, physical relation between them. (Healey 2012, 31) The idea of ...
... the lesson that quantum states are neither descriptions nor representations of physical reality. In particular, it undermines the idea that ascribing an entangled state to quantum systems is a way of representing some new, non-classical, physical relation between them. (Healey 2012, 31) The idea of ...
Graphene and Relativistic Quantum Physics
... The chirality of the electrons in graphene has important implications on the electronic transport in graphene. In particular, a non-trivial Berry phase is associated with the rotation of the 1/2-pseudo spinor which plays a critical role to understand the unique charge transport in graphene and nanot ...
... The chirality of the electrons in graphene has important implications on the electronic transport in graphene. In particular, a non-trivial Berry phase is associated with the rotation of the 1/2-pseudo spinor which plays a critical role to understand the unique charge transport in graphene and nanot ...
Three Levels of Cognition: Particulars, Universals, and Representals
... Case 3. In the case of many particular electrons, the electrons exist within different space-time regions and have the same intrinsic properties. They are regarded as identical entities belonging to a kind denoted by the universal an electron; needless to state that at any instant of time they may h ...
... Case 3. In the case of many particular electrons, the electrons exist within different space-time regions and have the same intrinsic properties. They are regarded as identical entities belonging to a kind denoted by the universal an electron; needless to state that at any instant of time they may h ...
Multiphoton localization and propagating quantum gap solitons in a
... H < 0. The soliton obtained is quite similar to a vacuum soliton, and we will use the phrase “ordinary soliton” to refer to this solution, despite its inordinate behavior on different polariton branches. Polaritons of the upper branch are described by one-particle Bethe strings with real positive ra ...
... H < 0. The soliton obtained is quite similar to a vacuum soliton, and we will use the phrase “ordinary soliton” to refer to this solution, despite its inordinate behavior on different polariton branches. Polaritons of the upper branch are described by one-particle Bethe strings with real positive ra ...
Emergence in Holographic Scenarios for Gravity - Philsci
... Accordingly, there is a finite number of degrees of freedom in a black hole system. ’t Hooft carried the argument one step further by pointing out that if a spherical volume V is bounded by a surface A, the total number of possible states and the entropy inside A are maximized if the volume contain ...
... Accordingly, there is a finite number of degrees of freedom in a black hole system. ’t Hooft carried the argument one step further by pointing out that if a spherical volume V is bounded by a surface A, the total number of possible states and the entropy inside A are maximized if the volume contain ...