# Social Laser:Application of Quantum Information and Field Theories to Modeling of Social Processes

Interplay of Psychology and Physics: Historical OverviewQuantum BrainQuantum-Like Modeling of Cognition and Decision MakingFrom Probabilistic Foundations of Quantum Mechanics to Quantum-Like ModelingQuantum-Like Models Outside PhysicsOperational Formalism: Creation and Annihilation OperatorsSocial Laser as a Fruit of the Quantum Information RevolutionBose–Einstein Statistics of Information ExcitationsPowerful Information Flows as the Basic Condition of Social Laser FunctioningResonators of Physical and Social LasersSocial Laser Model for Stimulated Amplification of Social ActionsWhat Can Be Expected from the Social Laser Model?Color RevolutionsDemocratic Social ProtestsSocial Energy PumpingQuick RelaxationEcho ChambersConflating Opposition Protests with WarfareBasics of Physical LasingLaser: History of InventionSpontaneous and Stimulated EmissionPopulation InversionBasics of Social LasingSocial EnergyEnergy of Social AtomsEnergy of the Quantum Information FieldQuantum Field Representation of the Information Flow Generated by Mass MediaColoring Information ExcitationsFrom Rough-Coloring to IndistinguishabilityThe Role of Emotions in Transition to the Indistinguishability Mode: Illustration by Military and Revolutionary PropagandaHidden Variables: Genuine Quantum versus Quantum-Like ModelsColoring Role: Pumping versus EmissionComparing Stimulated Emission in Quantum Physics and the Bandwagon Effect in Psychology and Social ScienceSocial Lasing SchematicallyInformation ThermodynamicsThermodynamics from Combinatorics of State DistributionThermodynamics of Distinguishable SystemsThermodynamics of Indistinguishable SystemsSocial TemperaturePossible StatisticsThermodynamical Approach to Modeling Population Inversion for Social LaserEinstein Coefficients and Balance Equation for Human Gain Medium Interacting with Information FieldBalance Equation for Steady State and Population InversionInformation Laser: The Four-Level ModelRadiative versus Nonradiative Emission for Physical AtomsMental Analogues of Radiative and Nonradiative EmissionsBalance Equation for Steady State and Population InversionConcluding RemarkLaser ResonatorResonators of Physical LasersSpontaneous Initiation of Physical LasingStimulated Initiation of Physical LasingResonators of Social LasersStructure and Functioning of the Social ResonatorOutput beam from the echo chamberOn a spatial picture of quantum physical processesStimulated Initiation of Social LasingSpontaneous Initiation of Social Lasing and Elimination of "Wrongly Colored'' Information ExcitationsEnergy Spectrum of the Output Beam: Physical versus Social LasingDynamics of the Quantum Information Field in the Social Laser ResonatorCreation–Annihilation Algebras for s-Atoms and Quantum Information FieldDynamics of the Compound System s-Atom FieldGorini–Kossakowski–Sudarshan–Lindblad Equation for the State of the Quantum Information FieldSocial Interpretation of Assumptions for Derivation of Quantum Master EquationProbabilistic Consequences of the Quantum Markov DynamicsConcluding RemarksCorrespondence between Notions and Parameters of the Theories of Physical and Social LasersLaser as a Quantum SystemBosonic and Fermionic Creation and Annihilation Operators in Laser ModelingSemiclassical Modeling of the Dynamics of the Laser Photon FieldCharacterization of the Coherence Properties of a Laser Beam with the Aid of Correlation Functions of the First and Second OrderPhase NoiseLaser as a Resonant Amplifier and a Generator: The Role of Positive FeedbackCavity Quality FactorDynamics of Laser Beam IntensityLaser Oscillation ConditionsSpontaneous Emission, Coherence, and LinewidthCorrespondence between Structures and Parameters of Physical Laser and Information (Social) LaserSpecification of the Basic Parameters of Physical LaserGeneral Correspondence between Information and Physical LaserLaser Characteristics: Heuristic PicturesResonatorsThe Role of the Lasing ThresholdFreudian Approach to Psychic EnergyOn the Notion of Representation According to FreudThe Three Levels or Orders of a Representation: IntroductionOn the First Representation Level or OrderOn the Second and Third Representation Level or OrderClassical Probability Theory: Kolmogorov's Measure-Theoretic AxiomaticsMathematical Structure of Quantum TheoryComplex Hilbert SpaceLinear OperatorsRepresentation of (Pure) States by Normalized VectorsRepresentation of Mixed States by Density OperatorsHilbert Space of Square Integrable FunctionsPostulates of Quantum MechanicsOperator Quantization: From Functions on Classical Phase Space to Hermitian OperatorsTwo Basic Interpretations of a Quantum StateConditional Probability in Quantum FormalismConditional Probability for Observables with a Nondegenerate SpectrumIndependence of the Initial StateMatrix of Transition Probabilities: SymmetricMatrix of Transition Probabilities: Double StochasticityInterference of Probabilities for Incompatible ObservablesLogic of Quantum PropositionsTensor Product of Hilbert Spaces and Linear OperatorsKet and Bra Vectors: Dirac's SymbolismQuantum Bit: Using State Superposition for Information EncodingEntanglement of Pure and Mixed Quantum StatesTwo-Slit Experiment and Violation of the Classical Law of Total ProbabilityOn the Possibility of Classical Probabilistic Description of Quantum ExperimentsInterference of Wave FunctionsQBism: Subjective Probabilistic Interpretation of Quantum MechanicsQuantum Theory as Subjective Probability MachinerySIC-POVMsComparing QBism and the Växjö InterpretationQBism Agents: Who Are You?QBism versus CopenhagenQBism versus the Information Interpretation of Zeilinger and BruknerInterpretations of Classical Probability TheoryKolmogorov's Interpretation of ProbabilitySubjective Interpretation of ProbabilitySubjective interpretation and mathematical representation of probabilities by measuresSubjective probability as the basis of classical physics?QBism's Role in the Justification of Applications of Quantum Theory Outside of PhysicsDecision Making: Quantum-Like Model of Lottery SelectionLottery Selection: Why Quantum Probability?Classical versus Quantum (Subjective) Expected UtilityQuantum Formalization of Selection of LotteriesConventional Approach Based on Classical ProbabilityBelief-State SpaceTransition ProbabilitiesDynamical Origin of PhasesBelief State of a Decision MakerOperator Representation of the Process of Comparison of LotteriesAnalysis of Operator-Based Comparison of LotteriesLotteries with Two Outcomes: Uniform Probability DistributionLotteries with Two Outcomes: General CaseMathematical CalculationsConcluding Remarks