Is Quantum Chemistry a Degenerating Research Programme?
... that do not yet exist. All in all, there is little reason to suppose that the area of molecular structure poses serious questions. (ii) The next auxiliary hypothesis is the neglect of relativistic effects. This neglect is not universal. Quantum chemists are well aware that relativistic effects do ha ...
... that do not yet exist. All in all, there is little reason to suppose that the area of molecular structure poses serious questions. (ii) The next auxiliary hypothesis is the neglect of relativistic effects. This neglect is not universal. Quantum chemists are well aware that relativistic effects do ha ...
Quantum Channel Construction with Circuit Quantum
... implement any given POVM. To achieve ultimate control of open quantum systems, it is crucial to extend the construction to general CPTP maps. In this paper, we concretize the idea developed in [23, 25] and propose a general protocol for implementing arbitrary CPTP maps, featuring minimal physical re ...
... implement any given POVM. To achieve ultimate control of open quantum systems, it is crucial to extend the construction to general CPTP maps. In this paper, we concretize the idea developed in [23, 25] and propose a general protocol for implementing arbitrary CPTP maps, featuring minimal physical re ...
Quantum Expanders: Motivation and Constructions
... i. e., D-regular graphs achieving spectral gap of 1 − 2 D − 1/D, for D a prime power. Friedman [13] showed that random graphs are “almost Ramanujan” and Alon and Boppana (see [33]) showed Ramanujan graphs have almost the best possible algebraic expansion. Several works [12, 2, 3, 24] showed intimate ...
... i. e., D-regular graphs achieving spectral gap of 1 − 2 D − 1/D, for D a prime power. Friedman [13] showed that random graphs are “almost Ramanujan” and Alon and Boppana (see [33]) showed Ramanujan graphs have almost the best possible algebraic expansion. Several works [12, 2, 3, 24] showed intimate ...
Phys. Chem. Chem. Phys. 14, 9411-20
... AQS, although some of them could also be used on DQS. 2.2.1 Preparing the quantum state into an initial state. In principle, there are two ways to simulate a chemical system.65,66 One is the second quantization method where the Born– Oppenheimer approximation is adopted. It considers that electrons ...
... AQS, although some of them could also be used on DQS. 2.2.1 Preparing the quantum state into an initial state. In principle, there are two ways to simulate a chemical system.65,66 One is the second quantization method where the Born– Oppenheimer approximation is adopted. It considers that electrons ...
Module P10.2 A wave model for matter
... Imagine a world in which knowing exactly how fast an object is travelling means that you have no idea where it is, or where the act of passing through an open doorway can alter your direction of travel in an unpredictable way. You might think that such a world would be pure science fantasy1—1but, pr ...
... Imagine a world in which knowing exactly how fast an object is travelling means that you have no idea where it is, or where the act of passing through an open doorway can alter your direction of travel in an unpredictable way. You might think that such a world would be pure science fantasy1—1but, pr ...
D-Wave quantum computer
... Optimization problems and particularly combinatorial optimization problems are very important nowadays. In fact, as we will see in this work, the current applications of these problems are huge and in some cases extremely important in the creation of modern technology such as microchip architecture ...
... Optimization problems and particularly combinatorial optimization problems are very important nowadays. In fact, as we will see in this work, the current applications of these problems are huge and in some cases extremely important in the creation of modern technology such as microchip architecture ...
ADIABATIC QUANTUM COMPUTATION
... There is an important subclass of NP problems, called NP-complete problems (NPC). Any NPC problem is at least as hard as all other problems in NP. It means that an algorithm to solve a specific NPC problem can be adapted 13 to solve any other problem in NP. If P6=NP, then it follows that no NP-compl ...
... There is an important subclass of NP problems, called NP-complete problems (NPC). Any NPC problem is at least as hard as all other problems in NP. It means that an algorithm to solve a specific NPC problem can be adapted 13 to solve any other problem in NP. If P6=NP, then it follows that no NP-compl ...
Analysis of a Quantum Error Correcting Code using Quantum
... CQP is its type system, which ensures that operations can only be applied to data of the appropriate type. The type system is also used to enforce the view of qubits as physical resources, each of which has a unique owning process at any given time. If a qubit is send from A to B, then ownership is ...
... CQP is its type system, which ensures that operations can only be applied to data of the appropriate type. The type system is also used to enforce the view of qubits as physical resources, each of which has a unique owning process at any given time. If a qubit is send from A to B, then ownership is ...
Axiomatic description of mixed states from Selinger`s CPM
... considering their preparation procedures as a special case of quantum channels. Since for each †-compact category Selinger’s construction provides another †-compact category, it doesn’t truly provide a profound structural grasp on quantum mixedness in the usual axiomatic sense. In this paper we obse ...
... considering their preparation procedures as a special case of quantum channels. Since for each †-compact category Selinger’s construction provides another †-compact category, it doesn’t truly provide a profound structural grasp on quantum mixedness in the usual axiomatic sense. In this paper we obse ...
Braunstein
... In communication entanglement is much better understood, but there are still important open questions. ...
... In communication entanglement is much better understood, but there are still important open questions. ...
Solving Critical Section problem in Distributed system by Entangled Quantum bits
... 2 (for more detail see [12]), we will see that all of these method has some drawbacks. Tow main drawbacks is bottleneck and single point of error and many message per enter and exit to the critical section. 1.2. Quantum computation Quantum computing is a new approach to computation that has the poss ...
... 2 (for more detail see [12]), we will see that all of these method has some drawbacks. Tow main drawbacks is bottleneck and single point of error and many message per enter and exit to the critical section. 1.2. Quantum computation Quantum computing is a new approach to computation that has the poss ...
Document
... (provably) involves prior judgments in the form of quantum state assignments. It is possible to show that neither deterministic nor stochastic preparation devices can prepare the same system state independent of system and device initial states. ...
... (provably) involves prior judgments in the form of quantum state assignments. It is possible to show that neither deterministic nor stochastic preparation devices can prepare the same system state independent of system and device initial states. ...
Quantum Information Processing
... and eventually destroy their subtle superposition properties. On the other hand, classical bits are more robust and can easily be checked for errors, which must involve an interaction with some other system, in a nondisruptive way. Quantum teleportation effects the faithful transfer of an unknown qu ...
... and eventually destroy their subtle superposition properties. On the other hand, classical bits are more robust and can easily be checked for errors, which must involve an interaction with some other system, in a nondisruptive way. Quantum teleportation effects the faithful transfer of an unknown qu ...
Codes and designs for quantum error correction
... One effective way to overcome the limitations and difficulties is to develop a new framework for designing quantum error-correcting codes that makes it possible to directly import a wider range of classical coding theory to the quantum domain. notable breakthrough in this direction is the entangleme ...
... One effective way to overcome the limitations and difficulties is to develop a new framework for designing quantum error-correcting codes that makes it possible to directly import a wider range of classical coding theory to the quantum domain. notable breakthrough in this direction is the entangleme ...
Closed Timelike Curves Make Quantum and
... effort ever being invested to solve it, merely because that is the only way to satisfy causal consistency. A rough analogy would be Shakespeare’s plays being written by someone from the present going back in time and dictating the plays to him. It is sometimes said that if CTCs existed, then one cou ...
... effort ever being invested to solve it, merely because that is the only way to satisfy causal consistency. A rough analogy would be Shakespeare’s plays being written by someone from the present going back in time and dictating the plays to him. It is sometimes said that if CTCs existed, then one cou ...
