Backends

A simulator lets you test a quantum experiment without real quantum hardware. Local simulators are free and ready to use.

Backend Availability

Local Simulator

Runs in your browser or on the local server. Always free.

Enabled
Cloud Simulator (AWS Braket)

The AWS Braket SDK is not installed. Install @aws-sdk/client-braket and set QUANTUM_AWS_* environment variables.

Not Configured
Real Hardware (QPU)

Physical quantum processors are not available. Safety gates prevent all QPU access.

Disabled

Cloud simulator not configured

Missing environment variables: QUANTUM_AWS_REGION, QUANTUM_AWS_ACCESS_KEY_ID, QUANTUM_AWS_SECRET_ACCESS_KEY, QUANTUM_AWS_BRAKET_S3_BUCKET. Set these in your server environment to enable AWS Braket integration.

Also requires the package @aws-sdk/client-braket to be installed.

Real hardware blocked

Safety gates are active: cost-safe mode, disable-real-hardware, and require-simulator-first are all enabled. No paid QPU execution is possible. Real hardware will remain disabled until these gates are explicitly removed.

Local Simulators

upcube-sim-7

Upcube

online
TypeSIMULATOR
Regionlocal
Accessopen
Qubits7
Uptime99.8%

High-fidelity simulator with configurable noise modelling for circuit prototyping.

Cost: Free (local simulator)
Noise: Noise model: depolarizing (configurable)

upcube-sim-5

Upcube

online
TypeSIMULATOR
Regionlocal
Accessopen
Qubits5
Uptime99.9%

Low-latency simulator for rapid iteration and algorithm validation.

Cost: Free (local simulator)
Noise: Ideal (no noise) – ideal for algorithm validation

upcube-sim-12

Upcube

online
TypeSIMULATOR
Regionlocal
Accessopen
Qubits12
Uptime99.5%

Large-scale simulator with entanglement tracing for multi-qubit experiments.

Cost: Free (local simulator)
Noise: Noise model: entanglement tracing with bit-flip error

Local QPU

upcube-qpu-1

Upcube

offline
TypeQPU
Regionlocal
Accessrestricted
Qubits16
Uptime97.2%

Local test QPU (offline for calibration). Not available for general workloads.

Cost: Cost TBD - requires access request
Noise: Physical device – calibration-dependent noise profile

Hardware Access Gated

External hardware is not connected

Enable hardware in settings