Aspects of quantum information theory
... Quantum information and quantum computation have recently attracted a lot of interest. The promise of new technologies like safe cryptography and new “super computers”, capable of handling otherwise untractable problems, has excited not only researchers from many different fields like physicists, ma ...
... Quantum information and quantum computation have recently attracted a lot of interest. The promise of new technologies like safe cryptography and new “super computers”, capable of handling otherwise untractable problems, has excited not only researchers from many different fields like physicists, ma ...
Lecture Notes for Physics 229: Quantum Information and Computation
... The moral we draw is that \information is physical." and it is instructive to consider what physics has to tell us about information. But fundamentally, the universe is quantum mechanical. How does quantum theory shed light on the nature of information? It must have been clear already in the early d ...
... The moral we draw is that \information is physical." and it is instructive to consider what physics has to tell us about information. But fundamentally, the universe is quantum mechanical. How does quantum theory shed light on the nature of information? It must have been clear already in the early d ...
HBNI Th65 - The Institute of Mathematical Sciences
... are evolved by a joint unitary evolution, and finally the environment degrees of freedom are traced out to give the evolved system states. It turns out that this provides a suitable framework for the description of open quantum systems. An intrinsic property of composite systems that is of much impo ...
... are evolved by a joint unitary evolution, and finally the environment degrees of freedom are traced out to give the evolved system states. It turns out that this provides a suitable framework for the description of open quantum systems. An intrinsic property of composite systems that is of much impo ...
Exciton-Polariton Bose-Einstein Condensation: Advances and
... condensates, such as polariton BEC, and in strong analogy with laser properties, the coherence time in the condensed regime is not limited anymore by the lifetime of the single particle in the system. Similarly, it is interesting to have a look at the second order time correlation of the polariton s ...
... condensates, such as polariton BEC, and in strong analogy with laser properties, the coherence time in the condensed regime is not limited anymore by the lifetime of the single particle in the system. Similarly, it is interesting to have a look at the second order time correlation of the polariton s ...
Quantum computation and quantum information (PDF
... many physicists. According to this view, it does not make sense to ascribe intrinsic properties (such as position or velocity) to isolated quantum entities (such as electrons, photons or other elementary particles). The properties of quantum systems only make sense in light of the measurements we ma ...
... many physicists. According to this view, it does not make sense to ascribe intrinsic properties (such as position or velocity) to isolated quantum entities (such as electrons, photons or other elementary particles). The properties of quantum systems only make sense in light of the measurements we ma ...
Quantum Chaos, Transport, and Decoherence in Atom
... ability to explain things clearly. His advice, insight, and presence in the lab contributed much to my development as a scientist. Thanks also go to Pat Morrow, who provided good advice and a lot of great experimental knowledge when I first arrived, as well as help in getting the Ti:sapphire laser t ...
... ability to explain things clearly. His advice, insight, and presence in the lab contributed much to my development as a scientist. Thanks also go to Pat Morrow, who provided good advice and a lot of great experimental knowledge when I first arrived, as well as help in getting the Ti:sapphire laser t ...
Quantum Information with Optical Continuous Variables - QuIC
... In 1905, Einstein took this idea one step further and assumed that the radiation was composed of discrete units of energy, the so called ”quanta”, which allowed him to explain the photo-electric effect [67], which gave him the 1921 Nobel Prize. This revolutionary idea of quantization was applied aga ...
... In 1905, Einstein took this idea one step further and assumed that the radiation was composed of discrete units of energy, the so called ”quanta”, which allowed him to explain the photo-electric effect [67], which gave him the 1921 Nobel Prize. This revolutionary idea of quantization was applied aga ...
Observation of Quantum Oscillations between a Josephson Phase Qubit
... the qubit is initially in state j1i, the !31 signal causes a transition to state j3i, quickly followed by the qubit tunneling into the right-hand well. In this way, the qubit measurement consists of mapping the states j0i and j1i into the left and right-hand wells, which are separated by a single fl ...
... the qubit is initially in state j1i, the !31 signal causes a transition to state j3i, quickly followed by the qubit tunneling into the right-hand well. In this way, the qubit measurement consists of mapping the states j0i and j1i into the left and right-hand wells, which are separated by a single fl ...
Concepts of Modern Physics
... Concepts of Modern Physics, including translations into a number of other languages, since the first edition appeared nearly forty years ago. Wherever possible, important subjects are introduced on an elementary level, which enables even relatively unprepared students to understand what is going on ...
... Concepts of Modern Physics, including translations into a number of other languages, since the first edition appeared nearly forty years ago. Wherever possible, important subjects are introduced on an elementary level, which enables even relatively unprepared students to understand what is going on ...
Information Geometric Superactivation of Asymptotic Quantum
... [Shor94], and Grover introduced the quantum searching algorithm in 1996 [Grover96], results in the field of quantum algorithms tapered off somewhat. In the middle of the 90s, there was a silence in the field of quantum algorithms and this did not change until the beginning of the present century. Th ...
... [Shor94], and Grover introduced the quantum searching algorithm in 1996 [Grover96], results in the field of quantum algorithms tapered off somewhat. In the middle of the 90s, there was a silence in the field of quantum algorithms and this did not change until the beginning of the present century. Th ...
Types for Quantum Computing
... I aim to address these questions by describing the structural features of quantum computation, and other quantum systems, in the terms of logic and type theory. This thesis is a study of the construction and representation of typed models of quantum mechanics for use in quantum computation. I introd ...
... I aim to address these questions by describing the structural features of quantum computation, and other quantum systems, in the terms of logic and type theory. This thesis is a study of the construction and representation of typed models of quantum mechanics for use in quantum computation. I introd ...
Decoherence, non-Markovianity and quantum estimation in qubit
... bath can be a difficult task, or even inappropriate, for example because of the approximations introduced to derive a master equation are too strong to hold in real systems. As a matter of fact, the classical description becomes progressively more reliable as far as the environment has many degrees ...
... bath can be a difficult task, or even inappropriate, for example because of the approximations introduced to derive a master equation are too strong to hold in real systems. As a matter of fact, the classical description becomes progressively more reliable as far as the environment has many degrees ...
The ion-optical design of the MARA recoil separator and absolute
... matrix together in right order. The transfer-matrix method is very fast and ...
... matrix together in right order. The transfer-matrix method is very fast and ...
Optimal Detection of Symmetric Mixed Quantum States
... In Section IV, we consider geometrically uniform (GU) state sets defined over a finite group of unitary matrices. In contrast to [19], the GU state sets we consider are not constrained to be rank-one state sets but rather can be mixed-state sets, and the unitary group is not constrained to be Abelia ...
... In Section IV, we consider geometrically uniform (GU) state sets defined over a finite group of unitary matrices. In contrast to [19], the GU state sets we consider are not constrained to be rank-one state sets but rather can be mixed-state sets, and the unitary group is not constrained to be Abelia ...
Bohr–Einstein debates
The Bohr–Einstein debates were a series of public disputes about quantum mechanics between Albert Einstein and Niels Bohr. Their debates are remembered because of their importance to the philosophy of science. An account of the debates was written by Bohr in an article titled ""Discussions with Einsteinon Epistemological Problems in Atomic Physics"". Despite their differences of opinion regarding quantum mechanics, Bohr and Einstein had a mutual admiration that was to last the rest of their lives.The debates represent one of the highest points of scientific research in the first half of the twentieth century because it called attention to an element of quantum theory, quantum non-locality, which is absolutely central to our modern understanding of the physical world. The consensus view of professional physicists has been that Bohr proved victorious, and definitively established the fundamental probabilistic character of quantum measurement.