Welcome to emu-sv

You have found the documentation for emu-sv. The emulator emu-sv is a backend for the Pulser low-level Quantum Programming toolkit that lets you run quantum algorithms on a simulated device, using GPU acceleration if available. More in depth, emu-sv is designed to emulate the dynamics of programmable arrays of neutral atoms, using the state vector representation. While benchmarking is incomplete as of this writing, early results suggest that emu-sv is faster and more accurate than tensor-network based emulators up to ~20 qubits.

Supported features

The following features are currently supported:

• All Pulser sequences that use only the rydberg channel without complex phase
• States and Operators can be constructed using the abstract Pulser format.
• The following noise types:
  • None currently
• The following basis states in a sequence:
  • ground-rydberg
• The following properties from a Pulser Sequence are also correctly applied:
  • hardware modulation
  • SLM mask
• Customizable output, with the following inbuilt options:
  • The quantum state in state vector format
  • Bitstrings
  • The fidelity with respect to a given state
  • The expectation of a given operator
  • The qubit density (magnetization)
  • The correlation matrix
  • The mean, second moment and variance of the energy
• Specification of
  • initial state
  • various precision parameters
  • whether to run on cpu or gpu(s)

Planned features

• The noises from the pulser NoiseModel using the density matrix formalism
• Differentiability
• Complex phases in the pulse.
• Overriding the interaction matrix

More Info

Please see the API specification for a list of available config options (see here). For notebooks with examples for how to do various things, please see the notebooks page (see here).