Quantum communication, reference frames and gauge theory

Abstract

We consider quantum communication in the case that the communicating parties not only do not share a reference frame but use imperfect quantum communication channels, in that each channel applies some fixed but unknown unitary rotation to each qubit. We discuss similarities and differences between reference frames within that quantum communication model and gauge fields in gauge theory. We generalize the concept of refbits and analyze various quantum communication protocols within the communication model.

pretty pointless, published nonetheless

References in corpus (26)

• Quantum Cryptography
• The entanglement of indistinguishable particles shared between two parties
• Hiding bits in Bell states
• Spin flips and quantum information for anti-parallel spins
• |0>|1>+|1>|0>
• Classical and quantum communication without a shared reference frame
• Superselection rules and quantum protocols
• Quantum algorithm for distributed clock synchronization
• Quantum methods for clock synchronization: Beating the standard quantum limit without entanglement
• Coherent Communication of Classical Messages
• Quantum nonlocality in the presence of superselection rules and data hiding protocols
• Nonlocal resources in the presence of Superselection Rules
• The Quantum State of an Ideal Propagating Laser Field
• Entangled quantum states as direction indicators
• Requirement of optical coherence for continuous-variable quantum teleportation
• Transmission of a Cartesian Frame by a Quantum System
• Aligning Reference Frames Using Quantum States
• Universal Leakage Elimination
• On the communication complexity of establishing a shared reference frame
• Decoherence-full subsystems and the cryptographic power of a private shared reference frame
• Quantifying the resource of sharing a reference frame
• Entanglement under restricted operations: Analogy to mixed-state entanglement
• Entanglement of identical particles and reference phase uncertainty
• Defending Continuous Variable Teleportation: Why a laser is a clock, not a quantum channel
• The physical meaning of phase and its importance for quantum teleportation
• Security Trade-offs in Ancilla-Free Quantum Bit Commitment in the Presence of Superselection Rules

Cited by in corpus (6)

• Reference frames, superselection rules, and quantum information
• Essential entanglement for atomic and molecular physics
• Units of rotational information
• Probing quantum coherence at a distance and Aharonov-Bohm non-locality
• The Role of Rotational Invariance in the Properties of Hamiltonians
• A Possible Approach to Inclusion of Space and Time in Frame Fields of Quantum Representations of Real and Complex Numbers